Chelsea manager, Enzo Maresca, has categorically warned Raheem Sterling to leave the club before the summer transfer window closes on Friday night. Maresca said Sterling and all the other players that are not training with the Blues’ first team will not get any minutes if they stay at the club beyond this summer’s transfer window. Speaking at his pre-match press conference on Wednesday ahead of Chelsea’s Conference League play-off second leg tie with Servette on Thursday night, Maresca said: “Raheem is a fantastic person, he trains very well. The only thing is; every manager has different idea…