Alexander Zverev won his first title of the year with a comprehensive victory over Felix Auger-Aliassime at the Cologne Indoors.
The German, who lost the U.S. Open final last month and exited the French Open in the fourth round, needed only an hour and 20 minutes to get the better of the 20-year-old Canadian thanks to a dominant service game.
Zverev said he still thinks about it "20 to 25 times a day".
Andrey Rublev boosted his hopes of reaching the ATP Finals as he came from behind to defeat Denis Shapovalov, setting up a St Petersburg Open final with Borna Coric.
"I had a very tough final in NY and the next final I played here I wanted to come out and obviously play my best tennis, finish the match", 23-year-old Zverev said.
Zverev, who won 80 per cent of points behind his first serve, assumed control after breaking the Canadian in the opening game and again to lead 5-2.
"In my mind I knew it was goint to be a hard match", said Auger-Aliassime.
The Canadian produced a comfortable hold in game five to remain within one break deficit before Zverev grabbed the second break at 4-2 when Auger-Aliassime netted a backhand. It's his first appearance in Germany since playing in Hamburg past year.
"You're going to be lifting a winner's trophy very, very soon", Zverev said.
The Cologne Indoors is the first of two consecutive competitions the city is hosting as part of the ATP calendar which was rescheduled due to the COVID-19 pandemic.