By Jacob Leeks Erik ten Hag’s trusted assistant at Manchester United is being eyed by Ajax as the Dutch club seek a new manager. Mitchell van der Gaag has worked as Ten Hag’s assistant at both Ajax and United since 2021. He stepped in to lead the Red Devils when Ten Hag was given a suspension ahead of the trip to Everton earlier this season. Before becoming Ten Hag’s No 2, Van der Gaag worked as a manager in his own right for 13 years. That included stops at Marítimo and Belenenses in Portugal as well as Dutch second tier sides FC Eindhoven and NAC Breda. Now he could be given the chance to be…