MATT TAYLOR'S injury time strike ensured Wanderers unbeaten spell stretched to a fifth game as they saw the season out at Stamford Bridge.
The midfielder's goal for Gary Megson's men completed a miserable afternoon for Chelsea, who saw Manchester United pip them to the post of the Barclays Premier League crown.
But the point for Wanderers ensured that they would be playing in the top flight for an eighth consecutive term next season, despite victories for Fulham, Reading and Birmingham City.
The visitors made one change from the side that beat Sunderland last week with Joey O'Brien coming in for fellow midfielder Danny Guthrie.
Megson named two goalkeepers among his substitutes with Jussi Jaaskelainen sitting on the bench alongside Ian Walker.
The visitors, all but safe barring a mathematical miracle, stifled their opponents during the opening exchanges, making it very tight in midfield.
Chelsea, knowing that they had to better what Manchester United were achieving at Wigan, tried their utmost to break the deadlock as early as possible, but found themselves coming up against stubborn resistance.
Didier Drogba wasted a gilt-edged chance on seven minutes when he stabbed wide at the far post after Michael Ballack's low centre reached him.
The hosts suffered a serious blow moments later when they lost the services of their skipper John Terry, who suffered an arm injury in a collision with team-mate Petr Cech. The England defender was stretchered off, with his prospects of playing in the Champions League final looking remote.
Wanderers were happy to soak up the pressure as Chelsea failed to break their opponents down, and Megson's battlers showed how dangerous they could be when Taylor rattled a 30-yard drive narrowly wide.
Frank Lampard then tried to test Ali Al Habsi after Gavin McCann was harshly penalised for a foul. The Wanderers midfielder clearly won the ball but referee Chris Foy opted to caution the former Aston Villa player. It mattered not, as Lampard fire the ball straight into the wall to earn Wanderers a deserved reprieve.
The hosts finished the stronger of the two sides as the half drew to a close, but Al Habsi was't really tested as his defenders performed admirably.
Avram Grant, in a bid to shake things up, withdrew Claude Makalele during the half-time interval and replaced him with Andrei Shevchenko as the Blues went 442.
The decision to become more positve in their attacking play almost paid off for Grant's men moments after the restart when Florent Malouda forced Al Habsi into tipping his 25 yard drive onto the crossbar.
Chelsea were relying too much on shooting from distance, but they could not prise open the Wanderers rearguard nor find a way past the outstanding Al Habsi.
As they stepped up the pressure, they were rewarded when substitute Shevchenko stabbed home from close range as he got on the end of Lampard's strike.
Diouf, playing in what could be his final game in a Wanderers' shirt, almost equalised by found Cech to be alert.
Substitute Stelios, a replacement for the Senegalese, was denied by Ashley Cole's goaline clearance after the Greek got on the end of the ball when Davies' effort rebounded off the cross bar.
Wanderers got the rewarded their efforts deserved in the dying stages of the match when Taylor shot through a crowd to beat Cech.















