South African Louis Oosthuizen has withdrawn from this summer's Olympics in Rio de Janeiro because of family and schedule issues.
The 33-year-old follows Fiji's former world number one Vijay Singh and Australia's 2013 Masters champion Adam Scott in deciding not to compete.
"I didn't make my decision without a great deal of thought," Oosthuizen said.
Golf is included in the Olympics for the first time since 1904.
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