Another player who van Gaal has familiarity with is Thomas Muller. The pair spent time together at Bayern Munich between 2009-11 and the attacking midfielder wants to link up again with his former manager at Old Trafford, write the Metro. It was van Gaal who gave Muller a shot in the Bayern team as a then-19-year-old and though he has since gone on to establish himself at the European champions, a distinct lack of first-team action has alerted us to his potential availability this summer. Muller has been largely used as a substitute by Pep Guardiola and with rumours of him being unsettled doing the rounds, now might be the time to take advantage and test the waters with a bid - though it would take something in the region of £35 million for Bayern to take us seriously. That being said, Muller scored 13 Bundesliga goals last season, and that sort of firepower would very much be welcomed at Old Trafford next term.