The two pals were rumoured to be dating at the time and many people piled on Drake when the world's number one missed out on a Grand Slam when she was upset by Italian Roberta Vinci, but Serena insists her performance had nothing to do with the rap star, who was in the crowd.

"I don't think that (criticism) was fair," she tells Glamour magazine. "I'm the one who's playing, who's making mistakes or making winners. I'm not one to blame anyone else for anything. And I don't think anyone else should either.

"I played a really good opponent that day. And I wasn't at my best."