Fourth seed Stefanos Tsitsipas edged world No. 1 Daniil Medvedev 7-6 (7-6), 3-6, 6-3 in an absorbing semifinal at the Cincinnati Open on Saturday to set up a summit clash with Borna Coric after the Croatian's 6-3, 6-4 win over Cameron Norrie.
Tsitsipas saved a set point in the opening tie-break to take the lead, but collapsed in stunning fashion in the second set, falling behind 5-0 before narrowly avoiding a bagel.
But the Greek, who had just two wins in nine matches against Medvedev coming into the encounter, raised his game in the decider and broke the U.S. Open champion at 3-2 before comfortably serving out the match with some exquisite net play.