Qatar Open : Jiri Lehecka upsets Andrey Rublev to seal semifinal spot
Doha : Jiri Lehecka earned the biggest win of his career by ATP Ranking on Thursday at the Qatar Open, where he upset World No. 5 Andrey Rublev 4-6, 6-4, 6-3 to reach his second tour-level semifinal, here.
The 21-year-old Czech entered…