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Story summary
- In the Dubai Duty Free Tennis Championships first round, Ugo Humbert defeated defending champion Stefanos Tsitsipas 6-4, 7-5.
- Humbert now leads Tsitsipas 4-1 in their head-to-head series.
- Tsitsipas will fall from the ATP Top 40 for the first time since 2018 due to this loss.
- Humbert will next face Andrey Rublev, who defeated Valentin Royer 6-3, 6-4.
- Other top seeds, including Daniil Medvedev and Alexander Bublik, progressed in the tournament.
