Jannik Sinner defeated John Isner 6-2 6-0 in the USA vs ITA round robin on hard. The upset overturned the form book — John Isner came in leading the head-to-head 1–0. Jannik Sinner claimed a first win over John Isner in two meetings, levelling the head-to-head at 1–1.
Sinner J. took it in straight sets.
Sinner J. and Isner J. faced 4 of the same opponents in the last 12 months. Sinner J. went 2–2 (50%) against them, Isner J. 2–3 (40%). Results against comparable opponents are close (1 : 0 better-results split).
Only 4 common opponents — small sample, treat as indicative.
Jannik Sinner beat John Isner 6-2 6-0. Umpiry, "Jannik Sinner vs John Isner — USA vs ITA Round Robin", https://umpiry.com/match/2021-11-26/isner-vs-sinner-usa-vs-ita-rr?utm_source=cite (as of 26 November 2021).