Sydney, Mar 7 : World No. 1 Rory McIlroy has once again apologized for his abrupt withdrawal from the middle of a tournament, giving a straightforward explanation and a pledge to never quit again in the middle of a round.

McIlroy had abruptly walked off the golf course in the second round of the Honda Classic on Friday, saying his head was not in the right place and then issuing a statement that his sore wisdom tooth made it difficult to concentrate, News. com. au reports.

Apologising for his behaviour, the Northern Irish golfer said that he had been putting a lot of pressure and a hard workload on himself so that he can perform well, which finally erupted during the day of the tournament.

Although McIlroy admitted that even with his problems, he should not have left the tournament and should have tried to shoot the best score possible, he said that he is allowed to make mistakes as he is young and still learning from them.

Attributing his frustration to wanting to improve on his breakthrough season, McIlroy dismissed suggestions that his new equipment deal with Nike was a part of the pressure Rebuffing rumours that relationship problems with his tennis player girlfriend Caroline Wozniacki had led to his withdrawal from the tournament, McIlroy said that he and Wozniacki are not breaking up and added that everything is well in his private life.

McIlroy, who is scheduled to play this week and at the Houston Open at the end of the month before going to the Masters, will play the opening two rounds of this World Golf Championship with Tiger Woods and Luke Donald, a group featuring the top three players in the world, the report added. (ANI)