Man Utd 1-1 Chelsea
Ricardo Carvalho's second-half header prevented leaders Manchester United from going six points clear of Chelsea.
Louis Saha gave United a first-half lead after a wonderful piece of skill, bending the ball past Carlo Cudicini.
The game developed an intriguing ebb and flow in the second half as Saha twice went close, while Frank Lampard rained in a series of shots in reply.
And Carvalho earned Chelsea that point when he powered a header past Edwin van der Sar from a Lampard corner.
If United had the better of the first half, Chelsea were well worth the draw given their impressive second-half display.
Man Utd: Van der Sar, Neville, Ferdinand, Vidic, Heinze, Ronaldo (Fletcher 86), Carrick, Scholes, Giggs, Rooney, Saha (O'Shea 86).
Subs Not Used: Kuszczak, Evra, Silvestre.
Goals: Saha 29.
Van der Sar: Solid during the isolated moments when Chelsea penetrated 7
Neville: Helped ensure his England colleague Ashley Cole was the busier defender 7
Heinze: Sturdy resistance knocked likes of Drogba out of their stride at times 7
Ferdinand: Hardly let Shevchenko or Drogba get a sight of United's goal but out-climbed for equaliser 7
Vidic: Felt the illegal force of a few errant arms and elbows but he never flinched 8
Ronaldo: Always looked to penetrate whenever he was on the ball and his slippery runs caused problems 8
Carrick: Maybe didn't shine as a creative force but neither did Lampard or Ballack so he did a job 7
Scholes: Just about shaded it in an star-studded engine room confrontation 7
Giggs: If he could have enticed a touch on one or two of his supplies he could have been formidable 7
Rooney: Even some of his brute force couldn't squeeze him past a stubborn Chelsea defence 7
Saha: After his Glasgow woe his finish was a personal triumph 8
O'Shea (sub Saha 85) No frills cameo 5
Fletcher (sub Ronaldo 85) No real chance to get involved 5