Jannik Sinner, the world number one, advanced to the third round of the US Open after defeating American Alex Michelsen 6-4, 6-0, 6-2, marking his 50th win of the season and a tour-leading 30th on hard courts. Despite recent doping allegations that surfaced after he tested positive for a banned substance in March, Sinner has been cleared of a ban due to a ruling of no fault. He capitalized on 50% of his break-point opportunities and showcased dominant play, particularly in the second set. Sinner will now face Australia's Christopher O'Connell in the next round. The victory continues Sinner's impressive streak, including five titles this season, and reflects his strong performance at this year's major tournaments. Fans at Arthur Ashe Stadium have largely supported Sinner amid the controversy surrounding his doping case.