Jordan Spieth withdrew from the Olympics on Monday, leaving golf without its top four players when the sport returns to the games for the first time since 1904.
The decision was announced by International Golf Federation President Peter Dawson.
Spieth is the latest golfer to say he was not going to Rio, telling the IGF it was for "health reasons." He had until midnight Monday in Scotland to decide. He was practicing at Royal Troon during the IGF news conference and was not expected to speak until Tuesday.
