He hopes to have Argentina striker Sergio Aguero — missing tonight with a groin problem — fit to face West Ham, though admitted ahead of this match that Yaya Toure, his most influential player this season, has been struggling to finish games. Of his decision to remove Toure after an hour of Saturday’s 3-2 win at Everton, Pellegrini said: “I just made the change because he is coming from his [muscle] injury and so he is not able to play 90 minutes but he didn’t have any problems in the last game.”