Swansea beat Red Devils 2-1
Manchester United lost their first game of the season, falling 1-2 to Swansea at the Liberty Stadium in South Wales
Rooney however was a major disappointment in the loss against Swansea as he cut an isolated and frustrated figure for most of the game.
United started well as Memphis Depay's free-kick was kept away by Lukasz Fabianski before Juan Mata missed a god chance midway through the first half.
Swansea gradually grew into the game with Jack Cork and Jonjo Shelvey dominated in the midfielder despite the presence of Morgan Schneiderlin and Bastian Schweinsteiger.
Despite keeping a clean sheet in his three games so far in the English Premier League the quality of Sergio Romero will be doubted after today's game.
His distributions all afternoon were suspicious and the Argentine goalkeeper does not posses the calm and presence we usually see with a top goalkeeper.
After a goalless first half, Mata gave United the lead at the restarted getting on a cross from the rampaging Luke Shaw to fire the ball high into the net.
Swansea captain nearly scored an own goal to but but Fabianski was alert to the danger.
Swansea manager Garry Monk responded to Mata's opener by replacing Wayne Routledge with Ki Sung-yeung giving and giving Gylfi Sigurdsson more freedom to opereate.
That change gave Swansea an equalizer, as Sigurdsson's cross was met by summer signing Andre Ayew, who scored with a header.
Ayew turned provider for Swansea's winner, playing in a low pass towards the near post for Bafetimbi Gomis score.
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