Bryan brothers withdraw from Rio Games, cite health priority

File-This July 5, 2016, file photo shows Mike Bryan, front, and Bob Bryan of the U.S return to Nenad Zimonjic of Serbia and Radek Stepanek of the Czech Republic during their men's doubles match on day eight of the Wimbledon Tennis Championships in London. Bob and Mike Bryan will not defend their Olympic doubles title in Rio, citing health concerns. The twins announced their withdrawal on their Facebook page Saturday, July 30, 2016, saying that as "husbands and fathers, our family's health is now our top priority." They didn't mention the Zika virus, which has been linked to birth defects. (AP Photo/Ben Curtis, File) (The Associated Press)

File-This March 5, 2016, file photo shows Mike Bryan, left, and Bob Bryan playing against Australia's Lleyton Hewitt and John Peers during their Davis Cup doubles match in Melbourne, Australia. Bob and Mike Bryan will not defend their Olympic doubles title in Rio, citing health concerns. The twins announced their withdrawal on their Facebook page Saturday, July 30, 2016, saying that as "husbands and fathers, our family's health is now our top priority." They didn't mention the Zika virus, which has been linked to birth defects. (AP Photo/Andrew Brownbill, File) (The Associated Press)