(CNN) — Have you heard the one about the funny tennis player? You probably haven’t, by the nature of their work, they are notoriously serious people; but one man can vouch for them. Michael Kosta was ...

The 24-time major champion lost one of his tennis records to the world No. 1 on Sunday.

MELBOURNE, Jan 17 (Reuters) - Novak Djokovic has backed Danielle Collins for her cheeky response to hostile fans at the Australian Open and said the sport could afford to take itself a little less ...