Tiger Woods' ex-girlfriend was planning to attend the summer Games in Brazil and cheer on the U.S. team while appearing in TV segments and promoting Reese's Peanut Butter Cups and Under Armour sportswear, but she doesn't want to risk getting caught out by the Zika virus, which is prevalent in the area.
"I think with the Zika and everything, it's probably just better that I watch from home," the 31-year-old tells People.com.
And she reveals so many of her fellow U.S. athletes are nervous about health and security issues in Brazil.
"Definitely some sports are more at risk than others, but for the most part, all the Olympians are pretty excited about Rio, despite everything," she adds. "I think they're doing the best job they can to keep it safe for everyone, and I think it's going to be fine."
"(If it were me) I think I would still go, but that would definitely be in the back of my mind throughout the entire two weeks of the games," she explains. "It's definitely tough for the athletes, for sure."
Zika virus fears have prompted a host of top sports stars to pull out of a trip to Brazil, including former gymnast Carly Patterson, golfers Justin Day, Jordan Spieth, Rory MCIlroy, and Dustin Johnson, and cyclist Tejay van Garderen.
International medical professionals have expressed their concerns about the Zika virus after World Health Organization (WHO) officials issued a public warning advising pregnant women to avoid areas where the Zika virus, a disease transmitted by mosquitoes that causes developmental damage in fetuses, is prevalent.