All the action from the Group A match in Lisbon.
Goalflashes and major incidents:
FULL-TIME The whistle blows and the jubilant crowd celebrate as Portugal stay in the tournament with a victory which makes Russia the first team to go out of the competition.
It sets up a fascinating final game for the hosts against arch-rivals Spain on Sunday night which will decide qualification from the group.
90+1 mins: Ronaldo causes more problems on the left but this time his centre does not lead to a goal.
90 mins: The fourth official signals three minutes of additional time as the Russian fans stream out of the stadium.
88 mins: GOAL Russia 0-2 Portugal
It's all over now as Portugal break quickly and Ronaldo slips in a superb ball for fellow substitute Costa to slot home from inside the six-yard box to seal the victory.
86 mins: Alenichev is booked for a foul as time begins to run out for the Russians.
85 mins: Russia are awarded a free-kick on the right but Bugayev's header just evades Bulykin.
84 mins: Deco receives an unnecessary yellow card for kicking the ball away after Russia are awarded a free-kick.
84 mins: Sennikov makes a superb challenge as Gomes shapes to shoot after more good work by Ronaldo and Costa.
82 mins: Deco takes his time at a free-kick 20 yards out but his effort flops safely into Malafeev's arms.
80 mins: Hearts are in mouths around the ground as Russian substitute Bystrov goes down in the Portugal area but the referee is not interested and the game continues.
79 mins: Ronaldo makes a sensational start with a display of trickery to beat Evseev before delivering a left-wing cross which is cleared.
78 mins: Russia respond by making their last change with Bulykin coming on for Karayaka in a final throw of the dice.
77 mins: Portugal make their final substitution as Manchester United's Ronaldo replaces Figo.
76 mins: Miguel's right-wing cross is easily gathered by Malafeev.
75 mins: Figo tests Malafeev again but he is equal to the shot from 20 yards.
73 mins: Malafeev is called into action again as he parries a well-struck long-range shot from Deco.
71 mins: Bystrov comes on for Izmailov as Russia try to keep their hopes alive.
70 mins: Figo delivers a cross from the right looking for substitute Gomes but Malafeev safely collects.
Russia had a good spell but failed to score and Portugal seem to have regained the upper hand.
65 mins: Figo goes down in the area under a challenge by Bugayev but the referee waves play on.
63 mins: Malafeev, who is producing an impressive display, makes a superb save at full-stretch to tip Figo's shot on to the far post after another sweeping move and Deco can only put the rebound over the bar.
62 mins: Another change for Portugal as Rui Costa comes on to win his 92nd cap with Simao making way.
Chelsea owner Roman Abramovich looks on from the crowd, clad in what looks like a Russia replica shirt.
59 mins: Russia are right back in the game but waste a chance to equalise when Loskov fires a free-kick from 20 yards out into the wall and then blasts the rebound into the stand.
57 mins: Karayaka continues to be influential with a snapshot from the edge of the area which a stunned Ricardo parries away for a corner.
56 mins Portugal make their first change as Benfica's Gomes enters the fray on his home ground at the expense of Pauleta.
56 mins: Deco tries his luck with a free-kick from 25 yards. The Russians decide not to have a wall and Malafeev has a clear view and saves comfortably.
53 mins: Portugal immediately break down the other end but Figo's effort from the left-hand side of the area flies over.
52 mins: Russia are looking brighter in the second half and Karyaka fires a testing left-wing cross across the Portuguese area but it comes to nothing.
50 mins: Valente runs at the Russian defence before unleashing a fierce left-foot shot which substitute goalkeeper Malafeev fists away for a corner.
48 mins: Pauleta is denied a clear run at goal by the assistant's flag but television replays suggest it may have been a harsh decision.
46 mins: Russia get the second half under way, knowing that they are 45 minutes away from elimination. Neither side has made any half-time substitutions.
HALF-TIME: So far so good for Portugal as they return to the dressing-room a goal to the good but 10-man Russia look on their way out of the tournament
45+2 mins: The game restarts at last with Figo taking a free-kick from almost the exact spot from which Zidane scored with a free-kick against England on Sunday.
He is not as successful as his French counterpart as the ball sails past the post.
45+1 mins: Ovchinniko takes his time to leave the field and while he is about to leave, a Russian fan comes on to the pitch and confronts one of the assistant referees before finally being captured by police and security staff.
Russian substitute goalkeeper Malafeev comes on with Deco's marker Aldonin the man sacrificed.
44 mins: Things go from bad to worse for Russia as goalkeeper Ovchinniko is sent off for handling the ball outside his area after a wayward backpass sets Pauleta free.
43 mins: Russia have a great chance to get back into the game when Alenichev goes down under Deco's challenge 20 yards from goal but Karyaka wastes the free-kick as he drives it into the Russian fans behind the goal.
37 mins: Bugayev saves the day for Russia by doing enough to stop Simao getting in a shot after a flowing Portugal move.
35 mins: Loskov goes for goal with a free-kick from around 35 yards out but Portugal keeper Ricardo watches it fly harmlessly wide.
31 mins: Deco volleys the ball way over the Russian bar after Valente pulls the back to him following more Portuguese dominance.
29 mins: Yet another Portugal attack sees Figo swapping sides to deliver a superb flighted cross from the right which just eludes the head of the onrushing Pauleta.
28 mins: Carvalho heads past the post from Deco's right-wing centre as Portugal keep up the pressure.
26 mins: A left wing cross from Figo eludes a clutch of Portuguese players at the far post and floats harmlessly out for a goal-kick.
23 mins: Portugal's Carvalho becomes the third player to be booked after flattening Kerzhakov.
21 mins: Evseev joins Smertin in the book for a tackle on Figo which leaves the fans' favourite lying on the touchline.
15 mins: Chelsea's Smertin collects the game's first yellow card for a foul and is ruled out of Russia's next game against Greece as it is his second of the tournament.
14 mins: Valente makes a crucial challenge on Alenichev as he tries to shoot inside the Portugal area as Russia finally get out of their half.
10 mins: Figo's corner is gathered safely by Russian keeper Ovchinnikov as the hosts continue to dominate.
7 mins: GOAL Russia 0-1 Portugal
Maniche gives Portugal the perfect start as he controls the ball and fires home from 12 yards after the ball is pumped back into the area when a right-wing Figo free-kick is cleared.
4 mins: The crowd whistle their disappointment as the referee awards Russia a goal-kick instead of giving Portugal a corner after a good run by Deco.
2 mins: The hosts start briskly but Valente fails to deliver an early cross as the ball runs out ahead of him for a goal-kick.
1945BST: Portugal kick off on one of the most crucial evenings in their football history.
Thousands of nervous fans pack the Estadio Da Luz in Lisbon praying that hosts Portugal do not become the first team eliminated from Euro 2004. Defeat against Russia will be their second of the tournament and will make it impossible for them to qualify.
Russia are also facing elimination if they lose, having been beaten by Spain at the weekend. They have their supporters but do not appear to have taken up all their allocation of tickets.
Russia are without midfielder Alexander Mostovoi after coach Georgy Yartsev axed him from the squad for criticising his coaching methods.
Dmitri Loskov steps in while Alexei Bugaev replaces the suspended Roman Sharanov.
Portugal coach Felipe Scolari has made four changes after the opening game defeat by Greece.
Chelsea new boy Paulo Ferreira and fellow defenders Fernando Couto and Rui Jorge are all left out along with experienced midfielder Rui Costa.
In come Miguel, Nuno Valente and Ricardo Carvalho at the back with Deco taking over in the middle.
Russia: Ovchinnikov, Evseev, Smertin, Bugayev, Sennikov, Karyaka, Aldonin, Alenichev, Loskov, Izmailov, Kerzhakov.
Portugal: Ricardo, Miguel, Andrade, Carvalho, Valente, Costinha, Maniche, Figo, Deco, Simao, Pauleta.