Daniil Medvedev celebrated "one of the best victories" as he beat Denis Shapovalov 4-6 6-3 6-2 in the final of the Vienna Open on Sunday.
Playing in his first tour-level final since winning the Mexico Open in August, Medvedev found himself on the back foot after Shapovalov came out on top in a 50-minute opener.
The world number four conceded serve twice in the first set – the first time he had been broken throughout his run in Austria.
However, Medvedev hit back to claim the second set at the first time of asking.
Having lost serve twice in the decider, Shapovalov hung on in to frustrate Medvedev, saving six match points before finally succumbing to a deft drop-shot that the Canadian could only clip back into the net.
The victory marks Medvedev's second title of 2022, while it also ensures the Russian – who worked his way to world number one earlier in the year – will play in the ATP Finals next month, after going for glory at the Paris Masters.
"This match was the best of the week because Denis was really playing unreal until probably 4-3 in the second set," said Medvedev, who is aiming for a strong end to the season.
"He dropped his level by maybe two per cent and I was able to use it. This is one of the best victories when you know your opponent is on top of you, but you try and stay there and do what you can.
"I like to play indoor hard courts at the end of the season. I feel that I do a great job with my team not to arrive burnt out.
"I'm looking forward to the last two tournaments of the year which are really important and I usually play well."