Novak Djokovic

Aln his fifth clay-court match this tennis season, Serbian Novak Djokovic defeated Japan's Kei Nishikori 7-5, 6-4 to reach the second round at the Madrid Open on Monday. Feeling more doubts than in his previous appearance at the ATP clay court event, but showing more determination in the important moments, the two-time Madrid Open champion prevailed over the 2014 runner-up in one hour and 59 minutes, reports Efe.