LONDON (Reuters) - The Premier League title will be decided on the final day after Chelsea won 2-0 at Liverpool and Manchester United defeated Sunderland 1-0 on Sunday to keep the gap between the top two to a point.

Chelsea struck first as an awful Steven Gerrard blunder set them on their way to an ultimately comfortable Anfield win that took them to 83 points and also ended Liverpool's outside hopes of finishing fourth.

United responded as Nani's first-half goal proved enough to get past Sunderland and take them to 82.

Frank Lampard of Chelsea celebrates after scoring his team's second goal match between Liverpool and Chelsea at Anfield on May 2, 2010 in Liverpool, England.

In next Sunday's final round of fixtures Chelsea host Wigan Athletic, who beat them last September, while United are at home to Stoke City. Chelsea's superior goal difference of nine means that for United to retain their title they must win and hope the Londoners lose or draw.

Although Chelsea will look back on Sunday's game as an unexpectedly easy victory, Liverpool were on top for the first half hour as Alberto Aquilani went close twice.

Chelsea had shown almost nothing in attack but were then gifted a goal by Gerrard.

The England midfielder, who was on the brink of moving to Chelsea five years ago delivered a totally unnecessary long-distance back-pass that was easily intercepted by Didier Drogba. He rounded Pepe Reina with ease and rolled the ball into the empty net after 33 minutes.