PA:Press Association3Diego Costa has been in scintillating form for Chelsea this season with 14 goal. an eye on the Zenit midfielder whose contract is up in the summer and has made it clear he is desperate for a move. Still just a teenager, he leads and controls the back four. und flatly refused to start any negotiations over star teenager Christian Pulisic. The 23-year-old Argentinian forward is considered one of the brightest prospects in world football, and Juventus are determined to keep hold of their prized asset. During the end of last season he was said to be open to a move there but Conte did not want to sell. Getty Images4Victor Lindelof’s January move to Manchester United may well be back onHowever, A. According to Mundo Deportivo??PSG chairman and CEO Nasser Al-Khelaifi is desperately trying to thrash out a contract extension for Brazilian Marquinhos. but is flying in FranceIssa Diop, Toulouse, 19Just in front of sensational teenage goalkeeper Alban Lafont, Issa Diop is his protector and at 19 years old, a leader of his Toulouse team. Like current Kop stars Adam Lallana, Sadio Mane and Roberto Firminho, the Swede is supremely versatile and can play almost anywhere outside of defence.