The Bulgarian striker broke Bolton's resistance in the 90th minute to give United their fifth consecutive league win.

He connected with Carlos Tevez's pinpoint cross to head home from close range.

The Red Devils now occupy the league summit on 47 points, one ahead of second-placed Liverpool, who face Everton in the Merseyside derby on Monday.

Chelsea, third on 45 points, sealed a dramatic 2-1 victory over Stoke City at Stamford Bridge.

Rory Delap stunned the home crowd on the hour mark when he took advantage of some slack marking to chip over Chelsea keeper Petr Cech.

Juliano Belletti leveled the score with three minutes remaining via a far-post header.

Frank Lampard, with virtually the last kick of the game, struck the invaluable winner with a powerful shot from inside the area.

The win might ease the pressure on Chelsea coach Luiz Felipe Scolari, who has been under-fire recently due to the Blues' poor results.

Watch United goal