Keane is currently in contract talks with officials at United, but claims that they are going well and that he is happy to stay.
"As long as United want me, I am happy to stay for the rest of my career," the 30-year-old said.
"It is important everyone relaxes about this because I am happy. If things are resolved quickly, I would be delighted."
These comments come as welcome relieve to United fans, with Roy being a vital part of our midfield since he joined from Nottingham Forest in 1993.