Serbia's Novak Djokovic returns to Canada's Milos Raonic during their round robin stage men's singles match at the ATP World Tour Finals tennis tournament in London on November 15 Travis Kelce Hoodie , 2016. Djokovic won the match 2-0. (XinhuaTang Shi) LONDON, Nov. 15 (Xinhua) -- Novak Djokovic edged fourth seed Milos Raonic after two tie-break wins to reach the semifinals of the ATP World Tour Finals in London's O2 Arena on Tuesday.