Manchester United stalwart Ryan Giggs admits his glittering career could come to an end in May.

The Red Devils midfielder is set to see his current contract at Old Trafford reach its conclusion at the climax of the 2008/09 campaign.

With no new terms on the table the Welshman admits that, after 19 years of loyal service to the reigning Premier League champions, he may be forced to hang up his boots.

"I will keep playing as long as I enjoy it, I am fit and the manager wants me," Giggs told The Sun.

"If one of those three things stops, I will consider retiring.

"It could be at the end of this season. Or it could be the next one. I am at the end of my contract in May, so we will see. At the minute, there hasn't been any contact with United.

"I am as fit as I have ever been. The only difference is recovering from games.

"Two days after a game, I am still tired. Before, I could play Saturday-Wednesday, Saturday-Wednesday no problem.

"Today, I would be a lot less efficient at doing things. Nowadays, I only play once a week, it's very good that way."