Barcelona 1-2 Liverpool
Inter Milan 2-2 Valencia
Porto 1-1 Chelsea
Roma 0-0 Lyon
GOALFLASHES AND MAJOR INCIDENTS (all times GMT)
2137: FULL-TIME Inter Milan 2-2 Valencia
The four away teams are in the ascendancy after these first-leg matches. A resilient performance from Valencia and those two away goals means a 0-0 or a 1-1 draw would be enough for the Spaniards at home in a fortnight.
2136: FULL-TIME Barcelona 1-2 Liverpool
Peter Crouch's scouting mission was not in vain. He finally gets on and has the final touch before the whistle goes. It is the signal for hugs and high-fives all round among the Liverpool players. A quite sensational result for them against the defending champions.
2135: FULL-TIME Porto 1-1 Chelsea
Advantage Chelsea after the first leg, but that injury to John Terry will be of concern.
2135: Peter Crouch is getting ready to come on for Liverpool. He interrupted a romantic break in Barcelona with his girlfriend to get a glimpse of the Nou Camp when Barca played Celta Vigo in late January. That is preparation. He deserves a piece of the action just for that.
2134: FULL-TIME Roma 0-0 Lyon
Oh, were Roma and Lyon playing? As in the first half, not much to report, but Gerard Houllier will be happy with a goalless draw going into the return at home. Bottom-tapping referee Mike Riley booked 11 players to equal the Champions League record. It was 8-3 to Roma in yellow cards.
2133: Inter Milan skipper Javier Zanetti is booked for going down too easily in the Valencia penalty area by burly Swedish referee Martin Hansson.
2132: There will be four extra minutes at the Nou Camp.
2129: GOAL Inter Milan 2-2 Valencia
For the second time Inter let their lead slip. David Villa's corner is only half cleared and David Silva pounces outside the box, his low, left-footed drive beating Julio Cesar in the home goal.
2128: Another Deco free-kick and another Pepe Reina mistake. What has happened to the Liverpool number one? He is all over the shop and misses that delivery from Deco which rebounds off the woodwork.
2126: Pepe Reina comes off his line to punch the ball from a whipped Deco free-kick but flaps wildly at the ball. A let off for Liverpool. They need to stay alert with four minutes left on the clock.
2124: Good defending by Luis Figo on the post from a Valencia corner maintains Inter Milan's lead. It was Miguel Angel Angulo who had the effort.
2122: Whistles ring round the Nou Camp as there is a protracted break for Mohamed Sissoko to receive treatment. Former Chelsea man Eidur Gudjohnsen replaces Javier Saviola. Bolo Zenden comes on for Sissoko.
2120: Didier Drogba hits the post for Chelsea having been played in on the left of the area after good work by Andriy Shevchenko and Michael Ballack. It is raining in Porto. Is that the El Nino effect making it a damp old night on the continent tonight?
2119: GOAL Inter Milan 2-1 Valencia
Brazilian Maicon exchanges passes with Julio Cruz on the edge of the area and strokes the ball below Santiago Canizares in the Valencia goal.
2117: Barcelona's Javier Saviola is through on goal but Pepe Reina races off his line and slides in with a clearing tackle on the edge of his area.
2116: GOAL Barcelona 1-2 Liverpool
More poor defending from Barcelona. Rafael Marquez's weak header goes straight to Craig Bellamy who picks out John Arne Riise with a square pass and the Norwegian, in space in the area, cracks it in with his right foot. The Liverpool players are going bonkers. Up in the stands, injured Barca striker Samuel Eto'o hangs his head in his hands. Think that's because of the goal, but it could be the shame at the cameras picking him out while he is wearing a Miami Vice style white jacket.
2115: Here comes Milan Baros for Lyon. Fred is the man to make way.
2114: A chance for Barcelona. Chances for Barcelona. First Javier Saviola steps inside a defender and gets an effort away which Pepe Reina parries. Lionel Messi's follow up is deflected over.
2113: So then, three-quarters of the way through the action and David Villa will not play a role in the final quarter for Valencia as he hobbles off. hang on, hold that thought, he seems fine after all.
2111: A Barcelona player got the last touch on that Dirk Kuyt header and it is a corner to the Reds. And another. Something is thrown at Steven Gerrard prior to the second corner, which Barca clear.
2110: Eventually the free-kick is taken - further back from where it should have been - and Victor Valdes makes amends saving with his legs from Steven Gerrard. Dirk Kuyt heads a subsequent cross over the bar.
2108: These are great. Barcelona keeper Victor Valdes picks up a back pass and Liverpool have an indirect free-kick in the box. It is not ridiculously close to the goal but all the Barca boys are back.
2107: Inter Milan 1-1 Valencia
All square at the San Siro where David Villa curls a fierce free-kick round the Inter wall and in at the post.
2106: The closest we've come to a second-half goal at Porto. Didier Drogba fires a tame, low effort wide.
2105: Lyon boss Gerard Houllier picks his nose.
2103: Ronaldinho fires the resultant free-kick from that Deco-Mohamed Sissoko something-about-nothing incident over the bar.
2102: A bit of pushing and shoving between Deco and Mohamed Sissoko. It is like a terrier picking a fight with an alsation, but in this instance the terrier comes out on top as the alsation is booked. Obviously dogs don't get yellow cards in the park. Just go with the flow on that one.
2101: A crescendo of noise as Ronaldinho gets the ball in a central position, but the Brazilian is crowded out by seven white shirts. Liverpool are working hard.
2100: An interesting pose by Mike Riley there. The Englishman sticks his bottom out and taps it with his open palm. Not sure that is in the refereeing manual, but hopefully the Roma and Lyon players know what he is getting at.
2058: Chelsea's second-half caution is matched by Porto now. Goalscorer Raul Meireles is replaced by the more defence-minded Marek Cech.
2057: Lyon playmaker Juninho will be black and blue in the morning. He is chopped down by Taddei who picks up a booking.
2055: Rafael Benitez never lost as Valencia coach at the Nou Camp, and if Liverpool keep up their present pressure he could get a win out of this visit. Andres Iniesta replaces Thiago Motta in an effort to stem the red tide.
2053: If Luis Figo had not been distracted by that bloke and was instead concentrating on his football at half-time he may have slotted that one beyond Santiago Canizares having been played in on the left.
2050: Chelsea substitute Mikel Jon Obi has been given the task of shackling Porto's Ricardo Quaresma.
2048: Inter Milan and Valencia is the last of the quartet of games to get going again. In Barcelona, Steven Gerrard fires a free-kick straight at Victor Valdes. The goalkeeper does not do a Simon and Garfunkel and slip slide away over the line this time.
2047: The first games resume. Mikel Jon Obi is on for Arjen Robben so looks like Chelsea are happy to take a more cautious approach. The Nigerian was initially set to come on for John Terry before Porto scored.
2046: Back to European action. Maybe Inter coach Roberto Mancini picked up a few tips when he went to a fashion show earlier in the week. He is sporting a classic old school black and blue striped scarf. In fashion, what goes around comes around. Next week he will be wearing flares. Luis Figo air kisses some bloke on the way down the tunnel. Anything goes in Milan.
2045: GOAL Everton 1-1 Tottenham
Mikel Arteta curls in a delightful free-kick, but it was a dubious decision to award it from referee Uriah Rennie.
2038: GOAL Everton 0-1 Tottenham
Aaron Lennon scampers down the right and picks out Dimitar Berbatov who has time to pick his spot for his first away goal in the league.
2031: HALF-TIME Inter Milan 1-0 Valencia
Inter should have a bigger lead, but the Serie A champions elect will be happy with their first half.
2031: HALF-TIME Porto 1-1 Chelsea
The hosts have the edge but there is no question of Jose Mourinho's team sticking. They love a good twist and will go for that second goal in the second 45.
2031: HALF-TIME Barcelona 1-1 Liverpool
All Barcelona and then what do you know? Amazing, and it will give Liverpool renewed hope for the second 45. But do they stick or twist?
2030: HALF-TIME Roma 0-0 Lyon
Not much to report. Hopefully Gerard Houllier and his squad saw more entertainment when they did their sightseeing in Rome on Tuesday. They took in the Coliseum and the Vatican among others apparently.
2029: David Villa has a great chance for Valencia at the San Siro after some beautiful control - but the reported Liverpool target pulls his low drive just wide of the post.
2027: GOAL Barcelona 1-1 Liverpool
Craig Bellamy powers a header on goal from Xabi Alonso's cross which knocks Victor Valdes and the ball over the line. What shocking keeping. The Spaniard was solidly behind the effort but seemed to slip backwards behind the goal as if in a gentle wind turbine. Bellamy's got a new goal celebration. The golf swing.
2026: Inter come within a whisker of doubling their lead, but former Chelsea man Hernan Crespo sees his powerful diving header fly just wide of the post with Santiago Canizares beaten.
2025: GOAL Watford 1-1 Wigan
Caleb Folan wins an aerial challenge with Jay DeMerit and then prods the ball past the onrushing Ben Foster to make up for the sitter he missed moments earlier.
2023: Porto coach Jesualdo Ferreira has something of Roy Scheider in Jaws about him. He is almost up and celebrating, but Ricardo Quaresma's effort hits the post instead of the back of the net.
2022: Craig Bellamy gets on the end of Steven Gerrard's free-kick but heads into the side-neeting. Neeting? Obviously the goal consists of netting and there are no neets in sight in the Nou Camp. A first moment of promise from Liverpool.
2020: Diving is taking centre stage in Porto as well where Claude Makelele is booked for pointing out to the Swiss referee that their hosts are falling to the ground too easily.
2019: Five Live commentator Alan Green has just busted a blood vessel and Graham Taylor says it is "sad" as Carles Puyol theatrically goes down under a challenge from Dirk Kuyt. In fact, he went up before going down so big was the dive, but he was caught by the sliding Dutchman.
2018: Chelsea keeper Petr Cech is down well to his left to save a low, skidding free-kick from Ricardo Quaresma.
2017: Another Argentine has caught one somewhere else entirely. Lucho Gonzales gets a Claude Makelele size 10 boot right where you don't want it. Bet his eyes are watering.
2016: Replays show the Argentine may have followed through and headed the post, but he is still smiling despite catching one in the face.
2015: Maybe Esteban Cambiasso pulled a muscle as he craned his neck to head in the first goal in Milan. The Inter midfielder is replaced by Olivier Dacort.
2013: So that means Roma against Lyon, on a wet night in the Italian capital, is the only goalless game.
2012: GOAL Inter Milan 1-0 Valencia
Zlatan Ibrahimovic sees his stretching effort to meet a free-kick parried by Santiago Canizares, but Esteban Cambiasso is on hand to nod in the rebound.
2010: GOAL Watford 1-0 Wigan
The Hornets could be off the bottom of the table at the end of the night. Darius Henderson slots from all of two yards. It could be 20 yards when he is re-telling that in the pub in years to come and explaining how he kick-started an unlikely survival bid.
2009: Liverpool are all at sea having gone behind. Across the Spainish-Portuguese border Chelsea are building a head of steam and Didier Drogba heads over.
2006: RED CARD Wigan
A bit of domestic news and it is not good for Wigan. A quarter of the way into their match against Watford and defender Fitz Hall is sent off for a two-footed challenge on Johan Cavalli. Probably a bit harsh.
2004: Good footwork from Helder Postiga on the edge of the box and his clipped pass finds Lisandro Lopez clear, only for Petr Cech to beat his shot away superbly.
2002: Deco is causing problems for Liverpool and almost makes it two to Barcelona.
2000: GOAL Porto 1-1 Chelsea
The home fans are quiet in Porto and Jose Mourinho is giving it large - that's a technical term for you - on the touchline. Substitute Arjen Robben plays in Andriy Shevchenko on the left of the box and he slams his shot home.
1958: GOAL Barcelona 1-0 Liverpool
The hosts had just turned up the pressure big time and the goal comes from Deco. Alvaro Arbeloa mis-times a jump to head clear and Gianluca Zambrotta's cross finds the little fella unmarked in the box to nod in.
1957: John Terry is stretchered off to be replaced by Arjen Robben. That was the first goal Chelsea have conceded in 10 hours and 24 minutes.
1956: GOAL Porto 1-0 Chelsea
It goes from bad to worse for Chelsea. Claude Makelele's clearing header goes straight to Raul Meireles and comes back with interest. He lashes in a fierce drive against the temporarily 10-man Blues.
1955: Zlatan Ibrahimovic hits the woodwork for Inter Milan.
1953: England skipper John Terry went over on his right ankle, the one he hurt in training 24 hours ago. He has had it. On the upside, Didier Drogba looks to have run off his troubles.
1952: And now Chelsea skipper John Terry's down.
1951: Crikey, Roma are putting it about a bit. Christian Panucci clatters into Florent Malouda and gets an early booking. This is more like the opening to an episode of Casualty. Valencia's Carlos Marchena is down now.
1950: Lyon's Juninho looks OK, but Didier Drogba is still limping. He gave the bench the old substitution signal, rolling his hands over each other, but they ignored him.
1949: Perhaps Craig Bellamy and John Arne Riise have yet to make up. What they had there was a failure to communicate as the latter pumped a heavy, hard cross into the box that the former had no chance of getting on the end of.
1947: Something to keep an eye on in Porto where Didier Drogba is limping. Lyon's Juninho has also taken an early knock after a firm tackle - and foul - from Philippe Mexes.
1946: Pundits have been ruminating and cogitating over Liverpool's line up tonight and the verdict was Craig Bellamy would be on the left with Steven Gerrard supporting Dirk Kuyt. But the Reds have gone 4-4-2 with Bellamy in attack and Gerrard on the right. Alvaro Arbeloa is at left-back and Steve Finnan sticks at right-back.
1945: Things are up and running.
1943: And there is a British representative in the Eternal City tonight, and that is not anything to do with Simon Perrotta who was born in Ashton-under-Lyme. Mike Riley is the referee for Roma against Lyon.
1942: Liverpool keeper Pepe Reina gives the Nou Camp turf a tender stroke as he strolls out. The big bald fella used to play here and was in direct competition with present Barca incumbent Victor Valdes.
1941: Liverpool and Chelsea are both in change strips. All white for the Reds and that black pinstripe number for the Blues.
1940: Players are congregating in the bowels of the four stadiums.
1938: It is a bit of a walk to find the green stuff at the San Siro but finally Valencia look to have been pointed in the right direction.
1936: They are keen at the San Siro. Inter Milan are already lined up, ready and waiting, in the tunnel.
1932: When Jose Mourinho first returned to Porto his Chelsea side lost 2-1. Away from home the Blues have, well, endured the blues. In their last 11 games on the road in the Champions League they have won just two.
1929: There is a full house at the Dragao in Portugal and the home fans will want to give a warm welcome to former coach Jose Mourinho.
1926: Alvaro Arbeloa and Steve Finnan double up on the Liverpool right, with the Irishman down to play in the midfield. His new Spanish team-mate had a great game against Ronaldinho at the Nou Camp when playing for Deportivo La Coruna earlier in the season so Rafa Benitez must be hoping for more of the same tonight.
1924: After all the palaver about Craig Bellamy and John Arne Riise at Liverpool's training break in Portugal the pair line up on the left, so hopefully they are on speaking terms.
1920: The focus tonight is the first knockout round of the Champions League Part II, but we will be paying lip-service to the two Premiership matches with goal updates.
If you want to follow those matches more closely click on the relevant link below for minute-by-minute updates.
That mouth-watering relegation battle between the Hornets and the Latics starts at 1945 GMT, while Everton and Spurs are scheduled to start at 2000 GMT.
Javier Saviola starts in a three-man attack for Barcelona alongside Lionel Messi and Ronaldinho. Visiting boss Rafael Benitez has pulled a curve ball in his selection by giving a Liverpool debut to Alvaro Arbeloa at right-back. Craig Bellamy starts and Javier Mascherano is on the bench.
There is no Patrick Vieira on show for Inter Milan as he is injured. Talking about injuries, Valencia boast a long list of walking wounded. "They will miss Vieira but we have six internationals out," said coach Quique Sanchez Flores. But the attack is potent with David Villa and Fernando Morientes.
Porto welcome back the mercurial Ricardo Quaresma after suspension. Chelsea bring in Michael Ballack after a hamstring injury, while Lassana Diarra starts at right back. Didier Drogba and Andriy Shevchenko lead the line.
Roma boast a strong team with skipper Francesco Totti the main man. Lyon look set to go on the attack in the hunt for an away goal with Florent Malouda, Fred and Sydney Govou in attack. That means Milan Baros has to be content with a place on the bench.