Donald Trump Jr finances the Enhanced Games, a proposed competition where doping is allowed / Ex-Man Utd star takes responsibility for failed doping test / China hits back at the U.S. in response to doping allegations dogging its swimmers / China hits back at the US in response to doping allegations dogging its swimmers / China targets U.S. track athletes in response to doping allegations dogging its swimmers / Adam Peaty questions if Chinese swimmers are taking doping tests 'like I am' / Chinese Olympic swimmer says doping testers are part of a 'European and American' plot / Eddie Hearn: Ryan Garcia accepted doping charge to get favorable deal with the NY Athletic Commission / Katie Ledecky on sports doping and the Paris Olympics / Katie Ledecky says faith in some of the systems that prevent doping in sports is 'at an all-time low'