Czech Tomas Berdych has become the third high-profile tennis player to withdraw from the Olympics in two days, saying his concerns over the Zika virus prompted his decision.
The world No 8's announcement follows the decision by Wimbledon runner-up Milos Raonic and Simona Halep to withdraw from next month's Rio tournament.
"It was a hard decision for me to take after a long and painstaking discussion with my dearest," Berdych, 30, said on Saturday (NZT Sunday).
"It is because of the Zika virus spread in the country of the Olympics. As I have founded a family recently, to limit health risks towards my nearest is the utmost priority."
Several top golfers have opted to skip the Olympics because of concerns about the mosquito-borne disease which is linked to birth defects in newborn babies.