Australian Alex de Minaur has fallen short in his bid to capture his first ATP Masters 1000 title, losing the Canadian Open final in straight sets to Italian nemesis Jannik Sinner.

Seventh-seeded Sinner continued his dominance of de Minaur with a commanding 6-4, 6-1 victory over the Australian number one.

It was Sinner's sixth win from as many meetings with de Minaur and instead earned the 21-year-old his first Masters crown after losing two Miami Open finals, in 2021 to Hubert Hurkacz and this year to Daniil Medvedev.

The 21-year-old is the youngest champion at the tournament since Alexander Zverev won as a 20-year-old in 2017.

Sinner is also only the second Italian to win at this level since 1990, after 2019 Monte Carlo champion Fabio Fognini.

While Sinner will climb to number six in the world, de Minaur's consolation is a new career-high ranking of 12th in a huge confidence boost ahead of the US Open starting in two weeks.

The 24-year-old was contesting his fourth final of the year, after claiming his seventh career title in Acapulco and losing to world number one Carlos Alcaraz at Queen's and to the fourth-ranked Stefanos Tsitsipas two weeks ago in the Los Cabos decider.