More than 60,000 supporters crammed into the Theatre of Dreams to watch stars of the past, including the likes of Ruud van Nistelrooy and Zinedine Zidane, roll back the years and grace the Old Trafford turf once more.
Van Nistelrooy scored for United, but Real Madrid ultimately won 2-1. The crowd were also treated to music performances from JLS, Tinchy Stryder and Amelia Lily.
Robson, who took charge of the United legends team, said the fans ensured the day will live long in the memory of everyone involved.
“The fans were magnificent and they really made the occasion special,” he said. “It's unbelievable to think more than 60,000 people would come to a charity game. The incredible atmosphere they created is something the players will never forget.
"We had some truly great players on show and some great entertainment, but it was the fans who made everything possible.
"We've raised more than £800,000 for a fantastic cause [Manchester United Foundation] and that money will go to helping young people in some of the most difficult communities imaginable.
"It's a shame we couldn't deliver the result all the United fans were hoping for but the Foundation is the real winner."