PARIS -- Jannik Sinner routed a weary-looking Alexander Zverev 6-0, 6-1 in a little more than an hour on Saturday to reach the Paris Masters final and move closer to reclaiming the No. 1 ranking.
The four-time Grand Slam champion from Italy will replace six-time major winner Carlos Alcaraz at the top if he wins Sunday's final against ninth-seeded Felix Auger-Aliassime, who needs a win to clinch the eighth and final spot for the season-ending ATP Finals in Turin, Italy.
Auger-Aliassime earlier beat Alexander Bublik 7-6 (3), 6-4 in their semifinal at La Dfense Arena.
Sinner extended his indoor winning streak to 25 matches, including a victory over Zverev in the Vienna final last weekend. He beat Zverev -- the defending champion in Paris -- for the fourth straight time to lead 5-4 in their career meetings.
The second-seeded Sinner was 5-0 up in 25 minutes and then served out a first set in which he won 90% of his first-serve points, compared to only 47% for Zverev. He had five break points on Zverev's serve, converting two of them.
In the second set, Sinner broke Zverev for a 2-1 lead. The third-seeded German looked drained and stood with his hands on his knees after that game.
Zverev had saved two match points to beat Daniil Medvedev in three sets in their gritty quarterfinal on Friday to end a five-match losing streak against the Russian.
Sinner will bid for his fifth title of the year and 23rd of his career on Sunday; Auger-Aliassime goes for his fourth of the season and ninth overall.
They are 2-2 in head-to-heads, with Sinner winning the past two -- including in the semifinals at this year's US Open.
Bublik led 4-1 in the second set but then lost five consecutive games, smashing his racket on the ground after one of them.
Serving for the match, Auger-Aliassime began with his 12th ace. A forehand winner at the net gave him a first match point and he clinched it with another big forehand. Auger-Aliassime patted his heart and waved to the crowd.
Auger-Aliassime has won titles this year in Adelaide, Montpellier and Brussels.
The No. 13-seeded Bublik was the first Kazakh to reach a Masters semifinal. He lost for the fourth time in six matches to Auger-Aliassime.
