Manchester City midfielder Samir Nasri is angry over claims about his attitude in training.

City boss Roberto Mancini has questioned Nasri's form this season, though he was man-of-the-match in victory over Newcastle United.

He said: "I am aware that I have not had a good season. There are many reasons for this. But when Mancini said that I'm training at 50 per cent, this is not true."