James Duckworth defeats Matteo Arnaldi in a US Open first-round match, producing an upset. Multiple outlets describe the result as a breakthrough moment for Duckworth against a higher-ranked or seeded opponent.

The reports consistently frame Arnaldi as the seeded player and Duckworth as the underdog. While the sources vary slightly in wording—some focusing on Duckworth “stunning” the seed and others on the “upset”—they describe the same match outcome and round. All accounts indicate the match ends in Duckworth’s favour in the opening stage of the tournament, eliminating Arnaldi from the US Open.

Overall, the coverage aligns on the key facts: the two players, the tournament stage, and the result, with emphasis on the relative expectations going into the match.