TORONTO - Rafael Nadal won his 80th ATP World Tour title Sunday - and spoiled Stefanos Tsitsipas' 20th birthday.

The top-ranked Nadal beat the unseeded Greek upstart 6-2, 7-6 (4) for his fourth Rogers Cup crown and fifth victory of the year. He has 33 ATP World Tour Masters 1000 titles.

"If you told me this two weeks ago I would not have believed it," Nadal said. "It's a great way to start the hard-court season. Winning in Toronto is so important. You don't win Masters 1000s very often. It's a very important victory for me and I'm very happy."The 32-year-old Spanish star also won the Rogers Cup in Toronto in 2008 and Montreal in 2005 and 2013.