Overview
- Francisco Comesaña defeated American Alex Michelsen 1-6, 6-3, 6-4, 6-4 to reach the second round in New York.
- The Mar del Plata native climbed 17 ATP places last week to a career-high No. 54 after a run to the Cincinnati Masters last 16.
- Cameron Norrie awaits in round two after the Briton advanced when Sebastian Korda retired with Norrie leading by two sets.
- Sebastián Báez exited 6-3, 7-5, 6-4 to Lloyd Harris, and qualifier Federico Agustín Gómez fell to No. 5 Jack Draper 6-4, 7-5, 6-7(7), 6-2.
- Tomás Etcheverry is already into round two, with Francisco Cerúndolo and Solana Sierra scheduled to make their main-draw debuts on Tuesday.