Merry Christmas from Novak and Vajda

Watch some of your favorite players including Novak Djokovic (and Marian Vajda), Viktor Troicki, Jelena Jankovic, Ana Ivanovic, Nikolay Davydenko, Andy Murray, David Ferrer, JoWilfried Tsonga, Gilles Simon, Nicolas Kiefer, Vera Zvonareva, Dinara Safina, Elena Dementieva and other have fun as they perform a special rendition of the Twelve Days Of Christmas song.