Alex De Minaur claimed the first grass-court title of his career with a hard-fought three-set victory over Lorenzo Sonego in the Viking International final.

De Minaur lost the first set against his Italian opponent, who reached a career-high ranking of 26 earlier this month, but the Australian fought back to prevail 4-6 6-4 7-6 (7-5).

Having forced a decider, it was De Minaur who had the most left in the third-set tie-break, which decided an entertaining contest that lasted two hours and 40 minutes.

It marked De Minaur's second title of 2021 following his success at the Antalya Open back in January.

Prior to Saturday, all four of De Minaur's ATP titles had come on hard courts.

However, an excellent backhand return of a second serve set him up for a forehand smash to clinch a triumph that should give him great confidence heading into Wimbledon.

De Minaur starts his campaign at the All England Club on Monday with a testing opening clash against Sebastian Korda while Sonego faces Pedro Sousa.

Speaking at the presentation, De Minaur paid tribute to Sonego, who recently lost his grandmother.

"Everyone should congratulate Lorenzo for an incredible week. Everyone should be scared of you at Wimbledon next week," said De Minaur.

"It's been a long week, I've played some great tennis, I've managed to pull through a very tough win.

"Hopefully I can keep it going through Wimbledon, I can't wait to go there next week."