The deadly Dutchman made his final appearance for the Reds on this day in 2006, against Middlesbrough, and is heading back to Old Trafford next month, when he will appear for both United and Real Madrid in the Red Heart United Legends match.
Although he is returning to another of his old clubs - PSV Eindhoven - next season, the legendary striker admits he never really had an interest in management during his playing days but has had plenty of time to contemplate his future plans since retiring from the game.
"I'm going to start my coaching badges in September," he stated. "It's going to be in Holland as I'll start at PSV in September and get my coaching experience with them.
"It's part of a course and I'm looking forward to that and will see where it takes me. It lasts for three years so it's quite a big thing for me. I'm going to take my time, not rush it and take it step-by-step."
Van Nistelrooy never planned to go into management but has had time to take stock since ending his career at Malaga.
"I always said I'd never do it," he conceded. "But now, once I'd retired, I had a year out in Marbella and it was fantastic to come to terms with retirement and what has happened over the past 20 years. I've come to terms with that and also what's next so, in that sense, I've had a great year to see where my interests lie.
"It's definitely looking towards passing on my experience over many, many years.