Caroline Wozniacki will open 2011 with a bang. She finished the year as the world number 1 and a slew of endorsements have been sealed to make her one of the most marketable tennis players. Her endorsement of the Adidas Stella McCartney Line has made her one of the "it" girls of women's tennis. Proactive has also joined the endorsement bandwagon. But one of the most intriguing stories that surrounded her is her rumored racket switch. Caroline is known to have been using the Babolat brand since her teens. The Babolat racket has brought her a lot of success. But being the world's number 1 has also brought her to the endorsement radar with a lot of companies interested to get her. Racket switch is considered as one of the most toughest decision that a tennis player can make. It's either the racket can make a lot of wonders in the player's game or it can turn into a disaster. Much talk has been made about Novak Djokovic racket switch from Wilson to Head. Novak admitted that he had to undergo a lot of adjustments before he finally settled with Head. As for Caroline, it will be a matter of time before we know if she made a right decision. So here are some of the pictures showing Caroline sporting her new racket.