International Golf Federation president Peter Dawson confirmed Monday that the world No. 3 had withdrawn, citing concerns about the Zika virus.
Last month, Spieth, 22, said he was “uncertain” about taking part. Seen by many as the natural successor to Tiger Woods, his dazzling displays last year announced him as golf’s brightest new star and propelled him to the top of the rankings.
Dawson was speaking at a news conference before this week’s Open Championship in Scotland, where the leading players have assembled for the third major tournament of the golf season.
Spieth’s decision means none of the world’s top four will be involved when golf returns to the Summer Games for the first time…