Manchester United's hopes of retaining its Premier League title suffered another blow when it was held to a goalless draw at Blackburn.
The visitors bossed the game at Ewood Park for long periods but were unable to find a way past former England goalkeeper Paul Robinson.
United is now a point behind leader Chelsea - 2-1 winners at Old Trafford last Saturday - with the Londoners also having a game in hand.
Manchester City strengthened its bid to finish fourth - and claim the final Champions League spot - after thumping Birmingham 5-1 at Eastlands.
Nedum Onuoha scored his first league goal of the season and Emmanuel Adebayor also weighed in with a brace.
With Carlos Tevez scoring his 27th of the season from the penalty spot and also getting a touch to Onuoha's header to score his 28th, City secured a comfortable victory.
Cameron Jerome netted Birmingham's consolation.
City is now six points ahead of Liverpool, which could only manage a goalless draw at home to fellow Europa League semi-finalists Fulham.
Monday's other game, between Wolves and Stoke, also finished 0-0.
Manchester United 0
Manchester City 5
(Tevez 37p, 39, Adebayor 43, 88, Onuoha 73)
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