DOHA, Jan. 7, 2017  Novak Djokovic of Serbia returns to Fernando Verdasco of Spain during the men's singles semifinal of the ATP Qatar Open tennis tournament at the Khalifa International Tennis Complex in Doha, capital of Qatar, on Jan. 6, 2017. Novak Djokovic won 2-1. wll) (Credit Image: © Nikku/Xinhua via ZUMA Wire)