Celebrity Matthew McConaughey Happily Cheers on Team U.S.A. at the Olympics By Olivia Bahou Olivia Bahou Facebook Olivia Solomon is a New York-based writer and editor who covers all things fashion, lifestyle, celebrity, and pop culture. She was previously the Assistant Digital Editor for InStyle, and her work has appeared in many national publications. InStyle's editorial guidelines Updated on August 9, 2016 @ 01:15PM Pin Share Tweet Email Photo: Pascal Le Segretain/Getty Matthew McConaughey has caught Olympic fever! During the swimming finals on Monday night, the actor cheered on Team U.S.A. and could not have looked happier to be in the stands. The 46-year-old actor, whose wife Camila Alves grew up in Brazil, flew to Rio with Alves and their three kids, just in time to take in the action. The We Are Marshall star looked patriotic in an Old Navy Team U.S.A. tee and blue jeans, with his Olympic credentials around his neck. It looks like playing a coach in the 2006 film has rubbed off on him: The animated star cheered, whistled, and coached the U.S. team to a number of medals. VIDEO: See the 2016 U.S. Men's Olympic Swim Team in Their Shirtless Glory McConaughey also recorded a message for the competing athletes. “Go Team U.S.A. We’ll see you in the pool tonight at 10 o’clock,” he told the camera. ICYMI: @McConaughey is pumped to cheer on @usaswimming tonight at #Rio2016! The actor also stopped by a rugby match, cheering on Team U.S.A. in a red, white, and blue tee. Simone Biles Tells Kim Kardashian West She Wants North to Be Her "Mini-Me" This talented athlete is clearly a major sports fan.