The No. 20-ranked 20-year-old extended his winning streak against Top 20 players to five matches in a row on Friday with a 7-6 (5), 6-3 victory over No. 11-ranked Stefanos Tsitsipas in Basel.
It will be an electric quarterfinal clash in the ATP 500 Basel, as Stefanos Tsitsipas faces Arthur Fils. Currently ranked world No. 11, Stefanos Tsitsipas will be seeking to continue his current run ...