By Sean Walsh Manchester United have announced Ruud van Nistelrooy has returned to the club as an assistant manager to Erik ten Hag. Van Nistelrooy scored a whopping 150 goals across 219 games for the Red Devils during an iconic five-year stay at the club during the mid-2000s. Since retiring, he has pursued a career in coaching and was most recently the manager of PSV Eindhoven, but he left the club in 2023. United confirmed Van Nistelrooy’s return on Thursday, with former Go Ahead Eagles manager Rene Hake also joining as an assistant to Ten Hag. As a result, Mitchell van der Gaag and Benni Mc…