Geraint Thomas has withdrawn from the Road Cycling World Championships in Richmond, Virginia later this month.
Tour de France winner Chris Froome was already ruled out of the event from 19-27 September with a broken foot and now Thomas has ruled himself out saying he does not feel up to producing a strong performance after a gruelling season.
Thomas wrote on Facebook: "So I wanted to let you all know that sadly I won't be taking part in the world championships this year in Richmond.
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"It's been a hard decision to make but the season has taken its toll on me and I don't feel physically up for a good Worlds. I don't want to go there just to make up the numbers, I'd want to be competitive or at least do a good job for the boys.
"I love racing for GB and the Worlds are a really special race so it was a difficult decision to make, along with the team, but I feel it's best to rest up now before its all systems go for an big year next year. "
Mark Cavendish crashed out of the Tour of Britain but is expected to be in the Great Britain team in Richmond.