Jiri Lehecka of the Czech Republic took down Russian No. 1 seed Andrey Rublev 4-6, 6-4, 6-3 in the quarterfinals of the Qatar ExxonMobil Open on Thursday in Doha.Rublev, who survived a third-set tiebreaker to beat Dutch opponent Tallon Griekspoor in the previous round, fired 10 aces but couldn't break Lehecka's serve in the second or third sets.
Lehecka won 14 of 15 total service games despite Rublev holding a 36-26 edge in winners.Lehecka will face Great Britain's Andy Murray in the semifinals after Murray rallied past French qualifier Alexandre Muller 4-6, 6-1, 6-2.No.
2 seed Felix Auger-Aliassime of Canada and No. 3 seed Daniil Medvedev of Russia will square off in the other semifinal. Auger-Aliassime downed No.
7 seed Alejandro Davidovich Fokina 6-4, 7-6 (5) on Thursday while Medvedev battled past Christopher O'Connell of Australia 6-2, 4-6, 7-5.Open 13 ProvenceNo.