成人快手

Mark Chapman is live from Copacabana where Chris Froome and Geraint Thomas aim to get Great Britain off to a winning start in cycling and the men's road race. Mark Pougatch is at Lake Lagoa for the start of the Olympic rowing regatta. Also starting today: the equestrian competition, women's rugby sevens, men's artistic gymnastics, judo, boxing, and the men's hockey competition. There's also football coverage from the Championship and the Football League.