Sander Jong defeated Joao Fonseca 6-4 6-3 in the M15 Saarlouis 1 semi-final on clay. The upset overturned the form book — Joao Fonseca came in ranked #29.
Jong S. took it in straight sets.
Sander Jong beat Joao Fonseca 6-4 6-3. Umpiry, "Sander Jong vs Joao Fonseca — M15 Saarlouis 1 Semi-final", https://umpiry.com/match/2023-06-24/fonseca-vs-jong-m15-saarlouis-1-sf?utm_source=cite (as of 24 June 2023).