Alexei Popyrin defeated C. O'Connell 6-4 6-7 7-6 in the Brisbane round of 32 on hard. The upset overturned the form book — C. O'Connell came in ranked #117.
Popyrin A. came through in three sets.
Popyrin A. and O'Connell C. faced 3 of the same opponents in the last 12 months. Popyrin A. went 1–3 (25%) against them, O'Connell C. 2–2 (50%). Results against comparable opponents are close (0 : 1 better-results split).
Only 3 common opponents — small sample, treat as indicative.
Alexei Popyrin beat C. O'Connell 6-4 6-7(5) 7-6(4). Umpiry, "Alexei Popyrin vs C. O'Connell — Brisbane Round of 32", https://umpiry.com/match/2023-12-31/o-connell-vs-popyrin-brisbane-r32?utm_source=cite (as of 31 December 2023).