Djokovic calls for ranking points at Olympics

By Martyn Herman PARIS (Reuters) - Tennis at the Olympics should be treated like a fifth grand slam and ranking points awarded, world number one Novak Djokovic said on Tuesday, after top American John Isner confirmed he would skip the games in Rio de Janeiro. With no agreement in place between the International Tennis Federation (ITF) and the two Tours, the ATP and WTA, no points will be available for those players competing for medals at the Games which start in August. World number 17 Isner sa