Matteo Berrettini said winning Stuttgart was the 'last thing he imagine' as he made a stunning return from surgery.
Berrettini had a solid start to the year but required an operation on his hand following the Australian Open.
That saw him miss the clay season, although he looked like he had never been away as he extended his perfect record in Stuttgart to 9-0.
“It feels unbelievable, it was the last thing that I imagined when I came here,” Berrettini said.
“Of course it was a goal but coming back from an injury like that, from the first surgery in my life and then winning the tournament, not even playing my best tennis in the first round so it feels even more special, you know.
"Three years ago I think I played one of the best week on my life and this one, I think I started so-so and then I started to play better and better and it feels great.”
Andy Murray, who picked up an abdominal injury in the final, said he could have no complaints about the result either given the Italian's performance.
"He played very well today and merited the success,” said Murray.
“Sorry I was unable to move past the line today, however there’s been a ton of progress the most recent couple of weeks.
"Ideally my body can hold up a short time longer so I can continue to play matches this way.”
Despite this title, Matteo Berrettini will drop out of the world's top 20 after Wimbledon due to the event being stripped of it's ranking points, leaving him unable to defend the 1200 he won there as a finalist last season.
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