Giggs was named on the substitutes' bench for Sunday's match at Stamford Bridge but maintains he's hungry to be involved as often as possible this season, despite next month's approaching 39th birthday.
“I’m in good shape,” he said. “I was at the Olympics so I missed the majority of the pre-season training we do.
“That meant I was perhaps a little bit behind in relation to other players – I’d played more games rather than trained.
“But I’ve managed to get that back in order over the last few weeks, working with the coaches. I feel good at the moment.”