(Photo by Stu Forster/Getty Images)Manchester United remain interested in strengthening their midfield with Crystal Palace star Adam Wharton, but an increasingly crowded transfer race threatens to complicate their plans. Man United remain interested in Adam WhartonSources close to the agents industry have informed CaughtOffside that Man United’s interest remains active, although Crystal Palace’s demand of around €100 million has prevented negotiations from accelerating. Recent reports suggest that the Blues have resumed discussions with Palace and that Wharton remains a priority for Xabi Alonso. Wharton is an excellent long-term fit and could eventually become the controller Carrick’s midfield lacks, but Man United cannot allow Chelsea or Madrid to force them into paying an unrealistic premium. Arsenal lead Man United in the race to sign £73 million young hitman