West Ham boss Manuel Pellegrini praised Felipe Anderson after his match-winning double sealed his side's 2-1 win against Southampton on Thursday, but stated the Brazilian still has room for improvement.
Despite dominating the first half, West Ham only managed to create one clear cut chance before the break, with Lucas Perez scuffing a shot wide when under no pressure in front of goal.
Against the run of play Southampton took the lead in controversial circumstances five minutes after the break when Nathan Redmond forced the ball into the net with his hands following a scramble in the penalty box.