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American golfer Bryson DeChambeau is absent from the Tokyo 2020 Olympics after testing positive for Covid-19.
The 2020 US Open champion, who was due to make his Olympic debut, had yet to travel to Japan.
He was replaced in the US squad by Patrick Reed, who joins Justin Thomas, Collin Morikawa and Xander Sc Chaudele.
“I am deeply disappointed that I will not be able to compete in the Olympics for the American team,” said world number six DeChambeau, 27.
“Representing my country means the world to me and it has been a huge honor to be a part of this team. I wish Team USA the best of luck next week in Tokyo.
“I will now focus on my health and look forward to returning to competition once I am cleared to do so.”
Reed, who will now become a two-time Olympian, said: “I only wish Bryson the best, and I know how disappointed he is that he can’t compete, and I will do my best to play my best and represent our campaign. “
The Olympic golf competition begins Thursday.