Pierre Hugues Herbert defeated Alexander Zverev 2-6 6-4 6-3 in the Metz qualifying round on hard. The upset overturned the form book — Alexander Zverev came in ranked #2.
Herbert P. came through in three sets.
Pierre Hugues Herbert beat Alexander Zverev 2-6 6-4 6-3. Umpiry, "Pierre Hugues Herbert vs Alexander Zverev — Metz Qualifying Round", https://umpiry.com/match/2013-09-16/herbert-vs-zverev-metz-qf?utm_source=cite (as of 16 September 2013).