Tennis star's funny Serena impersonation

Tennis star's funny Serena impersonation - Caroline Wozniacki imitates Serena Williams during exhibition. Caroline Wozniacki uses a few props to poke fun at Serena Williams during an exhibition. Just about the only thing Caroline Wozniacki has in common with Novak Djokovic is that they each finished 2011 as the No. 1 player in tennis. Aside from that, Caroline is far behind Novak in terms of Grand Slam prowess and imitating other players.