Sinner accepted a three-month ban in February following an agreement with the World Anti-Doping Agency, which challenged an independent tribunal's decision to clear him of wrongdoing after two positive tests for the anabolic agent clostebol.
Carlos Alcaraz said Sunday that the pressure to reclaim the world number one ranking from the suspended Jannik Sinner has had a negative impact on his form this season.
Sinner received a three-month ban agreed with the World Anti-Doping Agency (WADA) in February after "admitting "partial responsibility" for team mistakes.
Jannik Sinner accepted on Saturday a three-month ban from tennis after the world number one admitted team mistakes led to him twice testing positive for traces of banned substance clostebol last year.
"He has lost only four or five matches in the past year, so it's crazy. I know people say who's better out of us. They say Jannik is better or some say me. It's all discussion."
Double Australian Open champion Jannik Sinner set his sights on mastering clay and grass courts to make himself a complete player after the Italian claimed his third hardcourt Grand Slam title on Sunday.
The 23-year-old came through a tense battle between the world's top two players 6-3, 7-6 (7/4), 6-3 on Rod Laver Arena, raising his arms in the air and looking to the sky in celebration.
The victory earned the Italian world number one his third Grand Slam crown.
Sinner's coach Darren Cahill said it was no surprise for him to see his young charge back in the final, but they were wary of the threat posed by Zverev's overarching desire to finally win a Slam.
Sinner had explained that the slight traces of clostebol had originated from a spray used by a member of his staff to treat a cut finger.
With Roger Federer retired and Rafael Nadal struggling to get back on court due to injuries, Novak Djokovic was the last man of that golden generation standing at Flushing Meadows, but the Serb crashed out in the third round to Australian Alexei Popyrin.
Jannik Sinner produced a brutal display of baseline power as he became the first Italian man to win the US. Open with a 6-3, 6-4, 7-5 win over American Taylor Fritz in the final on Sunday.
Jannik Sinner won his second Grand Slam title of 2024 on Sunday when he swept aside Taylor Fritz in the US Open final, shattering American hopes of a first male champion at the majors in 21 years.
Italian top seed Jannik Sinner took down ailing Briton Jack Draper 7-5, 7-6 (7/3), 6-2 to reach the US Open final on Friday, overcoming muggy conditions in a chaotic match at Arthur Ashe Stadium.
Medvedev still leads their head-to-head 7-6, although the Italian Sinner has won six of their last seven meetings.
Sinner is the only top-four player left in the men's draw following the exits of Novak Djokovic, Carlos Alcaraz and Alexander Zverev.
The 23-year-old Italian is the only man to have made the quarter-finals of all four majors this season.
Four-time French Open champion Swiatek was equally dominant as Sinner as the top-seeded Pole eased into the fourth round with a 6-4, 6-2 victory over Russia's Anastasia Pavlyuchenkova.
Alcaraz, the 2022 champion, is seeded to meet Sinner in the semi-finals.
