Oh, the craic on court!
Caroline Wozniacki took on Maria Sharapova at an exhibition match in Sao Paulo, whilst packing her chest and pants up with a selection of clothes to create a curvier look.
The aim? To make Serena Williams the butt of her joke.
Her boyfriend Rory McIlroy watched amused from the stands, as the camera caught Federer enjoying the light-hearted joke, delighted someone else was at the end of an impersonation joke for a change.
The Dane lost the match 6-2 7-6, but didn’t seem to be taking things too seriously.
The similarity to the US tennis sister? Uncanny!
Wozniacki could be taking a leaf from Novak Djokovic’s book, the king of tennis impersonations. The madcap Serb has taken off big rivals Rafael Nadal and Roger Federer, as well as women’s stars Williams and Sharapova.
But Serena won’t be too upset. She can afford to laugh off the light-hearted joke, she has won five of her six matches against Wozniacki, including an Olympic quarter-final at Wimbledon this year.