Ruud Van Nistelrooy's superb late double took the focus away from the charismatic Irishman who left the club by mutual agreement on Friday after 12 years.

The Dutch striker, however, said the sudden exit of Keane had made a huge impact on the dressing room.

"Yesterday we heard and it was a big shock, a sad day. It was impossible to get over it in such a short space of time," Van Nistelrooy told Sky Sports.

"But the game was here and we were all motivated to do well and to make sure we got a good victory, which we did.

"Roy will always be remembered as the greatest player that played for the club. His leadership and quality of play and his character will always be within us."

Replacing Keane will be manager Alex Ferguson's greatest challenge as he tries to close the gap on runaway league leaders Chelsea. Van Nistelrooy knows it will be a tough task.