Alexander Zverev defeated three-time former champion Philipp Kohlschreiber 6-3, 6-3 to defend his Munich Open title on Sunday.

Zverev, the world No. 3, hit four aces and converted four of his six break chances to win the final in 1 hour and 11 minutes.

Zverev says, "It was closer than the score indicates."

It is the 21-year-old's first title of the year and seventh altogether, boosting his confidence for upcoming tournaments in Madrid and Rome as well as the French Open.

The 34-year-old Kohlschreiber, who won here in 2007, 2012 and 2016, was playing in his sixth final at the clay-court tournament. It was the first all-German men's singles final since Florian Mayer beat Zverev to win the Gerry Weber Open in 2016.