Arsenal legend, Paul Merson, has predicted Wednesday’s FA Cup fourth round replay between Aston Villa and Chelsea. The fixture ended in a 0-0 draw between both sides at Stamford Bridge. However, a winner has to emerge at Villa Park tonight. Merson, speaking to Sky Sports, said he does not give Chelsea a chance. He said: “I don’t give Chelsea a chance on Wednesday night, not even a chance. That can’t be right. When was the last time I ever said that as a Chelsea fan? “It was only a few years ago that the other team would have no chance against Chelsea. Everyone would be surprised if they won th…