C. O'Connell defeated Botic Van De Zandschulp 6-7 6-4 6-0 in the Marrakech round of 16 on clay. The upset overturned the form book — Botic Van De Zandschulp came in ranked #41, defending last year's quarter-final. C. O'Connell extended the head-to-head to 2–0.
O'Connell C. came through in three sets.
C. O'Connell beat Botic Van De Zandschulp 6-7(8) 6-4 6-0. Umpiry, "C. O'Connell vs Botic Van De Zandschulp — Marrakech Round of 16", https://umpiry.com/match/2023-04-06/o-connell-vs-zandschulp-marrakech-r16?utm_source=cite (as of 6 April 2023).