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Sinner will now face No.3 seed Alexander Zverev for a place in the final, with the Italian still on course for a blockbuster showdown with Carlos Alcaraz in the showpiece match.

Auger-Aliassime was not overawed by facing the Sunshine Double winner and kept both sets close, but a break in game six allowed Sinner to seize the opener.

The Canadian threatened to break in game four of the second set, but Sinner staved off a break point before taking his second opportunity to break in game seven, as Auger-Aliassime cut a frustrated figure.

Sinner only gave up one point on his own serve from then on, sealing the victory at the first attempt as Auger-Aliassime failed to keep his deep return inbounds.

Sinner is only the fourth player to win 20 matches in a row at ATP Masters 1000 level, and his superb winning streak puts him in esteemed company.

Only Novak Djokovic, Roger Federer and Rafael Nadal had previously achieved that feat, since the format's introduction in 1990.

The Italian has won 15 of his past 16 matches against fellow top-10 players, with his only defeat in that period coming against Djokovic in the Australian Open semi-finals in January.

"Not every day is the same. I was struggling a little bit. I was a bit tired," Sinner, 24, said.

"I felt great before the match. In the second set I struggled a bit to find the right energy, but this can happen.

"I tried to push myself through, which I have done. Even when you don't feel your best, you try to find ways and that was the case today and I am happy. The main priority is to recover."