And the Spaniard has proved his weight in gold this season. Getty Images17Issa Diop is a teenage powerhouse in Ligue 1Getty Images17Standing around 6ft 4in tall, he is a monster of a centre-back?who dominates in the airHowever, averaging 4. Injury-plagued Carroll missed three months this season with a knee injury. News Group Newspapers Ltd3Pepe has twice won the Champions League with Real MadridManchester United . the contract situation just after Juventus defeat to AC Milan in the Italian Super Cup on December 23, he said: I havent signed anything yet. However, the possibility of signing another of worlds biggest names may entice United to make a statement. Barcelona are also watching the situation from afar — but they are in no position to compete with their Clasico rivals financially unless they sell a big player. A reunion with Koeman looks difficult for Schneiderlin, so it could be a battle of wills between Uni. However, Louis van Gaals additions of Daley Blind and Rojo appear to have been nothing more than square pegs in round holes — with both converted left-backs. The Belgian reports believe that Witsel could be set to team up with Oscar at Shanghai SIPG.