Stefanos Tsitsipas defeated Jannik Sinner 6-3 6-2 in the Rome Masters round of 32 on clay. The upset overturned the form book — Jannik Sinner came in ranked #1.
Tsitsipas S. took it in straight sets.
Stefanos Tsitsipas beat Jannik Sinner 6-3 6-2. Umpiry, "Stefanos Tsitsipas vs Jannik Sinner — Rome Masters Round of 32", https://umpiry.com/match/2019-05-13/sinner-vs-tsitsipas-rome-masters-r32?utm_source=cite (as of 13 May 2019).