Watch: Sharapova, Djokovic, Nadal Take Target Practice

Maria Sharapova, Novak Djokovic and Rafael Nadal are always up for fun and games.The Grand Slam champions faced off in an Abu Dhabi desert duel to determine best of the best.More: Tsitsipas Aims for Maiden MajorWatch the trio take target practice trying to hit letters in "The Best" sign in a promotional appearance for the Mubadala World Tennis Championship.

Sharapova faced Ajla Tomljanovic in tonight's women's exhibition match.World No. 1 Nadal will play Karen Khachanov in Friday's semifinals. Khachanov defeated Hyeon Chung 7-6(4), 6-4 in today's quarterfinals. Djokovic will take on ATP Finals champion Stefanos Tsitsipas in the other semifinal. Tsitsipas topped Andrey Rublev 6-3, 6-4."Obviously, playing against Rafa is never easy, especially the last few matches I lost all the matches," Khachanov said. "It's always nice to play him. We are good outside the court and he's a a great sportsman"I think everybody loves him here and all around the world so I hope we can show good tennis tomorrow."The 12th edition of the exhibition event, which will feature four of the world's top six-ranked players, will climax with the final on Saturday, December 21st.Photo credit: Head ]]>