Felix Auger-Aliassime got his ATP Finals bid up and running on Wednesday by beating Ben Shelton 4-6, 7-6 (9/7), 7-5 ahead of Jannik Sinner's clash with Alexander Zverev.

Felix Auger-Aliassime of Canada claimed his first win at this year's ATP Finals by battling back to beat American Ben Shelton 4-6, 7-6 (7), 7-5 on Wednesday.

Italy's Jannik Sinner got his title defence off to a solid start with a dominant straight sets win over ailing Canadian Felix Auger-Aliassime at the ATP Finals on Monday in Turin.

Jannik Sinner will return to the pinnacle of men's tennis when the ATP rankings are updated on Monday.

Amanda Anisimova avenged her Wimbledon thrashing by Iga Swiatek to reach the US Open semi-finals on Wednesday, while a resurgent Felix Auger-Aliassime sealed his place in the last four.

Felix Auger-Aliassime needed four match points and nearly three hours to beat Tommy Paul 7-6 (7/3), 3-6, 6-4 and reach the Adelaide International final on Friday.

Alcaraz and Tsitsipas will face each other in the French Open quarter-finals.

Novak Djokovic held off a late rally from his American opponent on Court Philippe Chatrier to clinch a 6-3, 6-2, 7-6 (7/1) victory

The 21-year-old Czech was knocked out in the first round at the four majors last year but was too hot for the sixth-seeded Canadian on Margaret Court Arena, winning 4-6, 6-3, 7-6 (7/2), 7-6 (7/3)

Australian qualifier Alexei Popyrin stunned second seed Felix Auger-Aliassime in the first round of the season-opening Adelaide International on Monday.