Atlanta, USA, 29 July 2019 | AAP / tennis.com.au

Alex de Minaur has added the Atlanta Open to his Sydney International title win from earlier this year after a dominant victory over American Taylor Fritz.

De Minaur, 20, broke Fritz’s serve twice in the first set and dominated the second-set tiebreaker to seal his second ATP Tour trophy with a 6-3 7-6(2) win in Sunday’s final.

The youngest finalist in the decade-long history of the Atlanta Open, De Minaur will move up to world No.25 when the rankings are updated on Monday.

“I don’t think I could start the American hard-court season any better than this,” De Minaur told atptennis.com.

“This one is really special to me. I felt like I really needed this. To start the year with a bang and then be slowed down by injuries… you expect your level to be right there once you come back, but you have to slowly grind your way back.

“I’ve been playing great tennis and felt like if I could keep it all together, the good results will come.

“This is a week that will really help me out. I’m happy with where I am and enjoying every day. I can’t wait to get back on court and keep improving.”

As had been the case all tournament, De Minaur was dominant on serve in the final, winning 29 of 31 first-serve points for a success rate of 94 per cent.

Incredibly, he dropped just seven points on his first serve for the entire tournament, and did not face a break point in any of his four matches.

The Australian, who arrived in Atlanta ranked 34th in the world, was set back by a groin injury after his maiden ATP title. He lost in the second round at both the French Open and Wimbledon, the latter in a tough five-setter against American Steve Johnson.

“It’s so good to see him back playing good tennis after struggling with injuries,” said a magnanimous Taylor, who made 20 unforced errors in the final.