Manchester United after coasting into a two goal lead were made to hang on for a 2-1 win over Premiership rivals Chelsea and take a six point lead over their nearest title challengers. With just two games remaining United have all but got their hands on the Premier League trophy and if the Reds had the perfect start Chelsea were left with a mountain to climb after going two down by the 23rd minute.
For a team with the best defensive record in the top flight the Blues looked vulnerable at the back.
In fact the visitor's were a goal down after just 36 seconds as Ji-Sung Park played through Javier Hernandez to open the scoring.
With Antonio Valencia and Park in sparkling form Chelsea struggled to get a foothold in the game even though Salomon Kalou had a couple of decent chances, by the time the Blues had settled down they were chasing the game.
Park had a fine effort saved but moments later a short corner was crossed by Ryan Giggs and Nemanja Vidic heads downwards and past Petr Cech.
Chelsea showed more urgency after the break as United lost their dominance and with 21 minutes remaining Frank Lampard pulled a goal back. Ramires crossed and Alex's knock down was prodded home from close range.
Fernando Torres came on as a substitute but made little impact.
United have now collected 52 points out of a possible 54 on home soil this season, and are unbeaten at Old Trafford since April 2010 having endured four minutes of stoppage time the final whistle was greeted as if Sir Alex Ferguson had already won a record 19th league title.
But in reality Manchester United now need just one point at Blackburn on Saturday to be crowned champions.
Referee: Howard Webb
Venue: Old Trafford Attendance: 75,445
Man Utd scorers: Hernandez 1, Vidic 23 Chelsea scorers: Lampard 68
Substitutes 29 Kuszczak, 12 Smalling, 23 Evans, 08 Anderson, 17 Nani, 18 Scholes, 09 Berbatov
CHELSEA 01 Cech 02 Ivanovic (yellow card) 03 A Cole 04 David Luiz (Alex 46) 26 Terry 05 Essien (yellow card) 08 Lampard 12 Mikel (Ramires 46 (yellow card) 15 Malouda 11 Drogba (yellow card) 21 Kalou (Torres 61)
Substitutes 22 Turnbull, 19 Ferreira, 33 Alex, 07 Ramires, 10 Benayoun, 09 Torres, 39 Anelka