Ferguson removed the football player from the club because of Cristiano Ronaldo.

Dutch striker Ruud van Nistelroy will be assessed as one of Manchester Unitedi's greatest goals scorer. But despite marking 95 times for the club, his time at Old Tuffford will be tarnished forever after his time was discovered under Sir Alex Ferguson's orders is over. It was believed that the time [...]
But despite marking 95 times for the club, his time at Old Tuffford will be tarnished forever after his time was discovered under Sir Alex Ferguson's orders is over. Van Nistelroy's time at United States was believed to have ended due to a marriage during the 2006 Carling Cup final.
The player was said to have spoken to Ferguson because he was not used as a substitute for Wigan Athletic. Shortly after this incident with Ferguson, the Dutch assailant signed Real Madrid and the rest is history. But 11 years after his departure from Old Tuffford, a segment of a book published by Unitedey's former chief of communication, Alastair Campbell, has discovered another possible reason after his departure, and that includes Cristiano Ronaldon.
Campbell, who is a good friend of Ferguson, said Fergie told him of van Nistelroy's departure, citing how difficult it was to manage the Dutch.
His “Fund was when he told Cristiano Ronaldo that he had found a new father, Carlos Queiroz, [Engson's assistant] shortly after Ronaldo's father, who was an alcoholic, had died”, Campbell originally told The Times. “Carlos asked him to show respect, and he [Nistilroy] said he did not respect anyone. He later apologized, but CR did not accept it”.
“Alex sent Van Nistlerooy home when he later heard about it.
“He was not sure what he would do with it”, Campbell concluded.
Van Nistelroy went to Real Madrid, Hamburg, and Malaga before withdrawing in 2012, but his time in United States is certainly the best time in football.
The Dutchman has played with names like Ryan Giggs, Paul Scholes, Zindine Zidane, Raul, Clarence Seedorf, Patrick Kluivert, and many other known.












