Manchester United midfielder Ryan Giggs has insisted that he is fit enough to continue his career in the top flight.

The 38-year-old, who was named the captain of Stuart Pearce's Team GB football squad for this summer's Olympic Games, has stated that while he is confident of spending more years at Old Trafford, he is unsure of when he will call it quits.

"I'm enjoying it more than ever," Giggs told Sky Sports News. "Whether that is because it is coming to an end I don't know but I'm enjoying it, I enjoy playing for United and I will enjoying playing [in the Olympics].

"I think I'll know [when it is time to retire]. I'm prepared at the moment - it could be this year, it could be next year, I don't know. I'm still fit and I'm still playing in the majority of games, so as long as I'm still enjoying it I'll carry on."

Giggs signed a one-year extension with the Red Devils earlier this year.