Former world number one Rafael Nadal said he is "not scared'' of the Zika virus before this week's Rio Open.
The top seed and his fellow Spaniard David Ferrer claimed they were confident all was being done to control the mosquitoes that spread the virus.
Number two seed Ferrer, 33, said he will be wearing long sleeves and long trousers when he goes out socially in the morning and evening.
"I'll try to take precautions, but I'm not obsessed about it," he said.
Nadal, 29, added: "I'm going out at night. I'm not scared. I'm not worried about this.