Kevin Anderson landed his first title since January 2019 as the former Wimbledon finalist triumphed at the Hall of Fame Open on Sunday.
The one-time world number five served 16 aces in a 7-6 (10-8) 6-4 win over 20-year-old American Jenson Brooksby at the tournament in Newport, Rhode Island.
Playing the third grass-court final of his professional career, after being runner-up at Queen's Club in 2015 and at Wimbledon in 2018, Anderson outfought Brooksby to land a seventh ATP title.
Now ranked at a relatively lowly 113th, the 35-year-old South African former world number five saw off top seed Alexander Bublik in the semi-finals before getting the better of Californian prospect Brooksby in the title match.
"It's been a pretty tough run with some injuries," Anderson said, quoted on the ATP website. "But to be back here at the International Tennis Hall of Fame with such history, this couldn't be a better week for me to start, hopefully, my comeback.
"I'm very motivated to get back. But it all starts with each match, and I was able to really grind it out."
Anderson's last title had come on hard courts at the Maharashtra Open in Pune, India, where he got the better of Ivo Karlovic in a match where all three sets went to tie-breaks, and where Karlovic fired 36 aces in a losing cause.