Skander Mansouri defeated Yannick Mertens 6-3 7-5 in the M25+H Oliveira De Azemeis 1 quarter-final on hard. The upset overturned the form book — Yannick Mertens came in leading the head-to-head 1–0, but Skander Mansouri had been the form player, winning 1 of their last 5 on hard. Skander Mansouri claimed a first win over Yannick Mertens in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-02-05 | M15 Monastir 3 | QF | hard | Yannick Mertens | 3-6 6-1 6-4 |
Averages over each player's completed matches in the selected window (107 vs 26). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About