Tennis champion Caroline Wozniacki has long endeared herself to fans around the world with her good looks and hilarious sense of humour.

During a recent exhibition match in Brazil she was at it again, this time impersonating long-time rival Serena Williams.

Playing against Maria Sharapova in Sao Paulo, Wozniacki had the crowd in the palm of her hand as she stuffed towels down her top and up her skirt to replicate the ample physique of Williams.

She then took her place at the baseline as Sharapova did her best to serve. With some Williams' trademark clothing adjustments and bouncing, Wozniacki was ready. Sharapova served and Wozniacki continued the impression with Williams-like grunts and squeals.

Men’s champion Novak Djokovic is well known for his impersonations of rivals Rafael Nadal and Roger Federer, as well as women's stars Williams and Sharapova.

Wozniacki’s boyfriend and world No1 golfer Rory McIlroy was in the crowd, as was Roger Federer.