West Brom's players celebrate their late equaliser with goalscorer Cox (centre)
By Sam Sheringham
BBC Sport at White Hart Lane
Simon Cox struck a superb late equaliser as West Brom dealt a major blow to Tottenham's hopes of Champions League qualification.
Jermain Defoe's fine individual goal looked to have secured all three points for the hosts, but substitute Cox curled a shot past Heurelho Gomes from the edge of the area in the 82nd minute.
The result leaves Spurs one point behind fourth-placed Manchester City, who will play their game in hand at Blackburn on Monday.
And with Harry Redknapp's men still facing trips to Chelsea, City and Liverpool, their chances of reaching the Champions League for the second season in a row appear to be fading fast.
For West Brom, a point at White Hart Lane was further evidence of the turnaround engineered by Roy Hodgson since his arrival in February.
Hodgson not yet certain of safety
The former Liverpool boss has only tasted defeat once in nine games and has steered his side to the safety of mid-table, where they now sit 12th with 40 points.
The Baggies made a stunning start to the game in blazing sunshine in north London.
They had already threatened through Jerome Thomas before Peter Odemwingie gave them the lead after five minutes.
The goal owed much to the vision of Arsenal loanee Carlos Vela, who picked out Odemwingie with a pin-point cross-field pass before the Nigerian shrugged off the challenge of Benoit Assou-Ekotto and curled a shot inside Heurelho Gomes' far post.
Assou-Ekotto was injured in the collision with Odemwingie and had to be replaced by Sandro, meaning Gareth Bale - a surprise starter in the Tottenham line-up after sustaining a knee injury against Arsenal in midweek - was forced to revert to left-back.
West Brom draw is a big blow - Redknapp
But the newly-crowned PFA Player of the Year did not seem to lose any of his attacking instincts as he galloped down the flank before crossing for Roman Pavlyuchenko, whose glancing header fizzed across the face of goal.
The Russian did not have to wait long for his goal as Spurs gained their reward for a dominant spell of attacking football.
Tom Huddlestone's pass was deflected into the path of Pavlyuchenko, who cleverly engineered some space for himself on the edge of the penalty area before lashing a low drive in off the post.
Pavlyuchenko should have put his side ahead shortly afterwards. Scott Carson pushed Rafael van der Vaart's fierce strike into his path but he side-footed the ball over the bar with the goal at his mercy.
With Bale rampant down the left and Luka Modric influential in midfield, the Baggies were relieved to see the game through to half-time, although they suffered a blow when midfielder Steven Reid was forced off injured and replaced by Gonzalo Jara.
Spurs were grateful to the athleticism of Gomes after the break as he flew to his right to palm away a powerful header from Odemwingie after Nicky Shorey's cross from the left.
Goal drought played on Defoe's mind
With their supporters just starting to express their displeasure at his players, Spurs boss Redknapp introduced Aaron Lennon for Huddlestone and the England winger soon won a free-kick on the edge of the area, which Van der Vaart curled harmlessly over the bar.
Any disappointment was short-lived, however, as Defoe put the hosts ahead with a superb strike.
Collecting the ball some 40 yards from goal, the England striker shimmied his way to the edge of the box and rifled a left-footed drive past Carson's outstretched hand.
Hodgson responded by withdrawing midfielder Paul Scharner and bringing on striker Cox, who repaid his manager's faith with a sublime equaliser.
Picking up the ball on the left flank, he cut inside and curled it over Gomes and into the far top corner.
The goal seemed to take the stuffing out of Spurs, who failed to engineer another chance of note - in fact it was Odemwingie who came closest to grabbing a winner as his low drive fizzed narrowly wide.
With just one win in seven games, Redknapp has his work cut out to rouse Spurs for one last push towards the top four. After this damaging draw, City are firmly in the driving seat.
Tottenham boss Harry Redknapp: "We're obviously disappointed because we thought we were in good shape 2-1 up, but Simon Cox has scored a world-class goal to equalise.
"It's difficult winning games in this league and West Brom are a good side.
"We moved the ball about well but we've got no divine right to win games. We'll try and make the top four and if we don't we'll try again next year."
West Brom manager Roy Hodgson: "Spurs are one of the hardest teams to play against as they have so many good attackers and so much pace.
"I'm proud of how we restricted them and luckily we scored two good goals ourselves. You've got to be a very good team to get a point here these days.
"It says a lot about the character of the team that we refused to give up and Simon Cox's equaliser was superb."
90:00+2:26 Free kick awarded for a foul by Peter Crouch on Chris Brunt. Direct free kick taken by Scott Carson.
90:00+2:08 Effort from inside the area by Simon Cox misses to the right of the target.
90:00+1:04 Jermain Defoe takes a shot. Inswinging corner taken right-footed by Luka Modric from the left by-line to the near post, clearance
by Jonas Olsson. Abdoulaye Meite gets a block in.
90:00+0:42 The referee blows for offside. Michael Dawson restarts play with the free kick.
90:00+0:10 Peter Odemwingie has an effort at goal from just outside the box which goes wide of the left-hand upright.
88:49 Booking The referee books Michael Dawson for unsporting behaviour.
88:41 Peter Odemwingie fouled by Michael Dawson, the ref awards a free kick. Gonzalo Jara takes the free kick.
86:52 Substitution Peter Crouch replaces Roman Pavlyuchenko.
83:37 Gareth Bale crosses the ball, clearance by Abdoulaye Meite.
82:01 Free kick awarded for a foul by Gonzalo Jara on Aaron Lennon. Free kick crossed left-footed by Rafael Van der Vaart.
80:46 Nicky Shorey provided the assist for the goal.
80:46 GOAL - Simon Cox:Tottenham 2 - 2 West Brom Goal scored by Simon Cox from just outside the penalty area to the top right corner of the goal. Tottenham 2-2 West Brom.
79:28 Effort from outside the penalty box by Chris Brunt goes wide right of the target.
79:16 Rafael Van der Vaart takes a shot. Jonas Olsson gets a block in.
Correction - 76:07 Substitution Simon Cox replaces Paul Scharner.
Correction - 76:07 Effort on goal by Gareth Bale from inside the penalty box misses to the right of the target.
76:07 Substitution (West Brom) makes a substitution, with Simon Cox coming on for Paul Scharner.
76:07 Gareth Bale produces a left-footed shot from deep inside the penalty area which goes wide of the right-hand post.
72:59 James Morrison takes a shot. Michael Dawson gets a block in.
68:40 Rafael Van der Vaart takes the free kick.
68:40 Substitution James Morrison on for Jerome Thomas.
68:40 Paul Scharner gives away a free kick for an unfair challenge on Gareth Bale.
67:56 Rafael Van der Vaart has an effort at goal from outside the penalty box which goes wide right of the target.
66:00 Assist on the goal came from Rafael Van der Vaart.
66:00 GOAL - Jermain Defoe:Tottenham 2 - 1 West Brom Jermain Defoe fires in a goal from just outside the penalty box to the bottom right corner of the goal. Tottenham 2-1 West
64:18 Handball by Chris Brunt. Strike on goal comes in from Rafael Van der Vaart from the free kick.
62:41 Free kick awarded for an unfair challenge on Youssouf Mulumbu by Raniere Sandro. Free kick crossed left-footed by Chris Brunt,
save made by Heurelho Gomes.
61:46 Substitution Tom Huddlestone goes off and Aaron Lennon comes on.
60:32 Youssouf Mulumbu fouled by Raniere Sandro, the ref awards a free kick. Free kick crossed by Chris Brunt, save by Heurelho
Gomes. Unfair challenge on Heurelho Gomes by Jonas Olsson results in a free kick. Heurelho Gomes restarts play with the free
59:44 A cross is delivered by Gareth Bale, clearance made by Paul Scharner. Outswinging corner taken left-footed by Gareth Bale,
clearance made by Paul Scharner.
58:35 Free kick awarded for an unfair challenge on Heurelho Gomes by Peter Odemwingie. William Gallas takes the direct free kick.
52:37 Peter Odemwingie produces a right-footed shot from just outside the penalty box that misses to the left of the target.
50:57 Peter Odemwingie takes a shot. Save by Heurelho Gomes. Outswinging corner taken left-footed by Chris Brunt from the left by-line
to the near post.
49:15 Effort from deep inside the area by Younes Kaboul clears the bar.
48:22 Rafael Van der Vaart takes the outswinging corner, Paul Scharner makes a clearance.
48:04 Younes Kaboul delivers the ball, clearance made by Jonas Olsson. Raniere Sandro takes a shot. Paul Scharner gets a block in.
45:47 Rafael Van der Vaart produces a left-footed shot from just outside the area that goes harmlessly over the bar.
45:01 The second half kicks off.
45:00+5:02 The referee calls an end to the first half.
45:00+3:35 Younes Kaboul takes a shot. Blocked by Youssouf Mulumbu.
45:00+3:35 Booking The referee shows Paul Scharner a yellow card for unsporting behaviour.
45:00+3:28 Luka Modric fouled by Paul Scharner, the ref awards a free kick. Rafael Van der Vaart restarts play with the free kick.
45:00+2:22 Free kick awarded for a foul by Gareth Bale on Jerome Thomas. The free kick is delivered left-footed by Chris Brunt from right
wing, comfortable save by Scott Carson.
45:00+1:48 Outswinging corner taken left-footed by Rafael Van der Vaart, clearance made by Paul Scharner.
45:00+0:43 Substitution Gonzalo Jara comes on in place of Steven Reid.
45:00+0:32 The ball is swung over by Gareth Bale, clearance by Nicky Shorey.
42:33 Centre by Tom Huddlestone, clearance made by Chris Brunt.
41:58 Short corner taken by Rafael Van der Vaart from the left by-line. Outswinging corner taken by Rafael Van der Vaart from the
40:56 Inswinging corner taken left-footed by Rafael Van der Vaart from the right by-line, save made by Scott Carson.
40:25 Carlos Alberto Vela is flagged offside by the assistant referee. Free kick taken by Rafael Van der Vaart.
39:02 Rafael Van der Vaart challenges Chris Brunt unfairly and gives away a free kick. Abdoulaye Meite restarts play with the free
38:51 A cross is delivered by Gareth Bale, clearance by Youssouf Mulumbu.
37:33 Younes Kaboul delivers the ball, Jonas Olsson makes a clearance.
36:50 Tom Huddlestone takes a shot. Save by Scott Carson.
35:29 Luka Modric takes a shot. Blocked by Rafael Van der Vaart.
Correction - 31:48 Rafael Van der Vaart takes a shot. Scott Carson makes a save. Shot from deep inside the area by Roman Pavlyuchenko goes over
31:48 Rafael Van der Vaart takes a shot. Save by Scott Carson. Shot from deep inside the area by Luka Modric clears the crossbar.
30:54 Peter Odemwingie is flagged offside by the assistant referee. Michael Dawson takes the free kick.
28:08 Tom Huddlestone fouled by Abdoulaye Meite, the ref awards a free kick. Direct effort from the free kick comes in from Gareth
26:05 GOAL - Roman Pavlyuchenko:Tottenham 1 - 1 West Brom Roman Pavlyuchenko grabs a goal from just outside the box to the bottom right corner of the goal. Tottenham 1-1 West Brom.
21:38 Rafael Van der Vaart takes the inswinging corner, clearance made by Abdoulaye Meite.
20:50 Roman Pavlyuchenko has a headed effort at goal from deep inside the area missing to the right of the goal.
18:55 Rafael Van der Vaart takes the outswinging corner, Steven Reid makes a clearance.
17:05 Unfair challenge on Carlos Alberto Vela by Raniere Sandro results in a free kick. The free kick is swung in left-footed by
Chris Brunt, Younes Kaboul manages to make a clearance. Chris Brunt takes a shot from a long way out clearing the bar.
15:38 Youssouf Mulumbu challenges Roman Pavlyuchenko unfairly and gives away a free kick. Rafael Van der Vaart produces a cross,
William Gallas has a header from close range and clears the crossbar.
12:46 The referee gives a free kick against Chris Brunt for handball. Direct free kick taken by Tom Huddlestone.
12:29 Centre by Gareth Bale, clearance by Abdoulaye Meite.
10:37 Rafael Van der Vaart takes the inswinging corner, clearance made by Youssouf Mulumbu.
8:31 Shot from just outside the box by Raniere Sandro misses to the right of the goal. Corner taken left-footed by Rafael Van der
Vaart from the right by-line, save by Scott Carson.
7:12 Foul by Jerome Thomas on Rafael Van der Vaart, free kick awarded. Direct free kick taken by Younes Kaboul.
6:22 Substitution Raniere Sandro on for Benoit Assou-Ekotto.
4:55 Carlos Alberto Vela provided the assist for the goal.
4:55 GOAL - Peter Odemwingie:Tottenham 0 - 1 West Brom Goal scored by Peter Odemwingie from inside the penalty area to the bottom left corner of the goal. Tottenham 0-1 West Brom.
4:37 Centre by Gareth Bale, clearance by Youssouf Mulumbu.
2:38 Paul Scharner challenges Roman Pavlyuchenko unfairly and gives away a free kick. Tom Huddlestone takes the free kick.
1:19 William Gallas gives away a free kick for an unfair challenge on Carlos Alberto Vela. Free kick crossed left-footed by Chris
Brunt, Gareth Bale manages to make a clearance.
0:40 Carlos Alberto Vela produces a right-footed shot from just outside the penalty box that misses to the left of the target.
0:00 The referee starts the match.
Live text and data provided by The Press Association.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.