Daniel Mark Nestor (born September 4, 1972 as Danijel Nestorovic) is a Canadian professional tennis player from Toronto, Ontario. He is one of the foremost doubles players in tennis history due to his longevity and continued success at the top of the men's game. , he is 11th for most men's ATP titles in Open Era history. In January 2016, Nestor became the first doubles player in ATP history to win 1000 matches.