Medvedev beats Tsitsipas to enter Vienna final
Daniil Medvedev earned a personal-best 64th tour-level win of the season when he defeated long-term rival Stefanos Tsitsipas 6-4, 7-6(6) to reach the Vienna Open final for the second consecutive year.
Three-time Grand Slam champion Stan Wawrinka clinched just his second win of 2018 when he defeated Slovak qualifier Martin Klizan 4-6, 6-2, 6-3 to reach the Sofia ATP quarter-finals.
The 32-year-old Wawrinka, who missed six months of the 2017 season to undergo two knee surgeries after Wimbledon, will face Viktor Troicki of Serbia on Friday for a place in the semi-finals.
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“I expected a tough match,” world number 15 Wawrinka told atpworldtour.com on Thursday. “He’s already played a few matches here.”
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Wawrinka had won just one match this year before the Bulgaria tournament, seeing off Ricardas Berankis at the Australian Open in January before falling to Tennys Sandgren of the United States.
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