Keane Thanks Man United Fans and Ferguson for Support
The combative Irish midfielder also paid tribute to Alex Ferguson, saying he would never be able to repay the United manager for his support.
"I owe this club a hell of a lot, not just the fans, but the manager, the staff and the players," Keane was quoted as saying by British newspapers on Sunday.
"They've all been tremendous and no matter what we achieve in the next three and a half year of my contract, I will never be able to repay my debt to them for the backing they have given me through the good and bad times," he added. "I've had my fair share of both. If we win every trophy in the next three and a half years it still wouldn't be enough to repay the club."
Keane was sent home from last year's World Cup after a row with then Ireland manager Mick McCarthy before running into trouble with the English Football Association over comments in his autobiography.
The 31-year-old United captain was suspended in October for five matches for bringing the game into disrepute.
He has also missed four months of the season following hip surgery.
Keane, however, has promised to try to curb the darker side of his character, putting more thought and less adrenaline into his game. "Sometimes as a player I need to look at the bigger picture rather than wanting to do everything by myself," he said. "I'll be using my head a bit more from now on, hopefully."
But Keane said he would not lose his drive or the motivational powers over his teammates in his quest to win more trophies with United, reported Reuters.
"You can't retire and think to yourself may be I eased off a bit toward the end. That would be the biggest crime for any player. I'll make sure that doesn't happen to me or the rest of the team," Keane said.
Keane has helped United win six Premier League titles, three FA Cups and the 1999 Champions League since moving to Old Trafford in 1993 for 3.75 million pounds ($6.07 million) from Nottingham Forest.