Lilian Breut defeated Nicolas Zanellato 4-6 6-3 10-8 in the M25 Kiseljak 1 qualifying round of 16 on clay. The upset overturned the form book — Nicolas Zanellato came in leading the head-to-head 1–0. Lilian Breut claimed a first win over Nicolas Zanellato in two meetings, levelling the head-to-head at 1–1.
Breut L. came through in three sets.
Lilian Breut beat Nicolas Zanellato 4-6 6-3 10-8. Umpiry, "Lilian Breut vs Nicolas Zanellato — M25 Kiseljak 1 Qualifying Round of 16", https://umpiry.com/match/2021-05-25/breut-vs-zanellato-m25-kiseljak-1-q16?utm_source=cite (as of 25 May 2021).