That was a damaging defeat for Aston Villa against Manchester United on Sunday, with the team well and truly opening the Champions League door to their rivals. Unlike the defeats to Newcastle United and then Chelsea in the FA Cup, Unai Emery can be pleased with how his players performed because they did everything right, other than putting the ball into the back of the net. That was highlighted by Stephen Warnock, who shared how the form and performances of Ollie Watkins and Moussa Diaby have dipped of late for Aston Villa, as he told BBC Sport. The former left-back thinks Ollie Watkins has go…