Pierre Hugues Herbert defeated Kei Nishikori 6-1 6-4 in the Marseille round of 32 on hard. The upset overturned the form book — Kei Nishikori came in leading the head-to-head 2–1. That levelled the head-to-head at 2–2.
Herbert P. took it in straight sets.
Hard: Nishikori K. leads 2–1 · Clay: Herbert P. leads 1–0
Pierre Hugues Herbert beat Kei Nishikori 6-1 6-4. Umpiry, "Pierre Hugues Herbert vs Kei Nishikori — Marseille Round of 32", https://umpiry.com/match/2021-03-08/herbert-vs-nishikori-marseille-r32?utm_source=cite (as of 8 March 2021).