With one brief statement, a potential exit route for one of the many players facing uncertain futures at Manchester United appears to have been closed off. The long-serving £50 million man appears to fall somewhere in the middle of that Venn diagram. Certainly not ‘unsellable’ but not quite ‘up for sale’ either. Manchester United are ‘not actively looking’ to cash in on Aaron Wan-Bissaka, to quote Sky Sports reporter Dharmesh Sheth. But with just one year left on his contract and with Diogo Dalot seemingly Erik ten Hag’s first-choice right-back these days, nor will they stand in his way should…