Manchester United do battle against Greek side PAOK in the Europa League, and go up against a familiar face. It is often noted among Manchester United fans, that players perform better when they are away from Old Trafford. See Fred becoming a key star for Fenerbahce, or David de Gea saving penalties at Fiorentina. And in recent months there have been calls for United to bring back a couple of players the club let leave. Angel Gomes left United for free and is now an England international, while Alvaro Fernandez’s displays for Benfica have seen the club tipped to activate his buy-back clause. N…