Top-ranked Novak Djokovic put on an impressive display against Kei Nishikori at the ATP World Tour Finals on Sunday, stretching his win streak to 15 matches at the season-ending event with a 6-1, 6-1 victory at O2 Arena in London.
“I think I was at my best,” said Djokovic, who has won the last three titles at the ATP Finals and four over all. “Undoubtedly it’s been an incredible performance that I was hoping I can have coming into the match.”
Djokovic lost only 9 points on his serve and never faced a break point.