Cleveland Cavaliers forward LeBron James wears an " I Can't Breathe" t-shirt during warm ups prior to the game against the Brooklyn Nets in Brooklyn, New York, December 8, 2014. Most Americans want Olympic athletes to keep their political views to themselves at the Rio Games, according to a recent Reuters/Ipsos opinion poll. Mandatory Credit: Robert Deutsch-USA TODAY Sports/File Photo - RTSKH3K