Arsenal keep City in check, Chelsea crash
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Manchester City squandered an opportunity to replace Chelsea at the English Premier League summit after being held to a 1-1 draw by an improved Arsenal side. 
Chelsea's 1-0 loss at Crystal Palace meant that victory at the Emirates Stadium would have sent City top on goal difference, but they remain third after David Silva's opener was cancelled out byMathieu Flamini. The day's events mean that only five points now separate leaders Chelsea and fourth-place Arsenal, who produced a much more determined display after last weekend's 6-0 demolition by Jose Mourinho's side.
Chelsea's advantage is paper-thin, however, as City, who trail them by two points, have two games in hand, while second-place Liverpool will go top if they win at home to Tottenham Hotspur on Sunday.
After Tomas Rosicky had seen an early penalty appeal turned down for Arsenal, City went ahead in the 18th minute when Silva prodded in after a shot from Edin Dzeko came back off the post. Arsenalcentre-back Per Mertesacker inadvertently almost doubled City's lead early in the second half, the ball trickling inches wide of goal after goalkeeper Wojciech Szczesny had pushed a Samir Nasri cross against him.
Within moments Arsenal were level, as Lukas Podolski was granted space to cross from the left and Flamini flew in to steer a half-volley into the bottom-right corner in the 53rd minute. City goalkeeper Joe Hart then saved from Podolski, while City's best chance of a winner saw Yaya Toure, Nasri and Dzeko denied by a series of desperate blocks by Arsenal defenders.
Chelsea manager Mourinho had admitted defeat in the title race after his side slumped to a shock loss against relegation-threatened Palace at a sun-soaked Selhurst Park. A 52nd-minute own goal by Chelsea captain John Terry settled the game, prompting Mourinho to concede: "We depend too much on other results. When you depend a little, it's possible. When you depend a lot, I don't think it's possible. We depend now too much. I don't think now we can win the league."
Rooney gives Moyes cheerEarlier, Wayne Rooney inspired Manchester United to come from behind and beat Villa 4-1 in a game that witnessed a fresh protest against United manager David Moyes. A small plane towing a banner that read 'WRONG ONE - MOYES OUT' flew over Old Trafford shortly after kick-off and the under-fire former Everton manager then saw his side fall behind to an Ashley Westwood free-kick.
However, Rooney scored twice before half-time, with Juan Mata and Javier Hernandez adding further goals as the under-performing champions inched to within ten points of the top four. Moyes had received a warm reception from the United fans prior to kick-off and he said: "Every supporter I bump into in the street or any dinner I go to, they're all talking about (how) they know exactly what it's like at Manchester United. And I've got to say, the crowd inside Old Trafford today showed that."
Elsewhere, Mats Moller Daehli scored a 95th-minute equaliser as third-bottom Cardiff Cityprevented West Bromwich Albion from climbing six points clear of the relegation zone in a dramatic 3-3 draw at The Hawthorns. A breathtaking lob from wide on the right by Morgan Amalfitano put West Brom ahead in the second minute and Graham Dorrans added a second goal seven minutes later. 
A 30-yard Jordon Mutch strike and a Steven Caulker header brought Cardiff level, only for Thievy Bifouma to restore West Brom's lead in the 94th minute, but Daehli smashed home an equaliser with the last kick of the game. The Norwegian's goal left Cardiff three points below 17th-place West Brom, having played a game more.
Swansea City eased their own relegation fears by winning 3-0 at home to Norwich City, whileSouthampton crushed Newcastle United 4-0 and Peter Odemwingie gave Stoke City a 1-0 win overHull City.