Alexander Zverev to top ATP rankings for the first time after reaching the Vienna quarterfinals
German tennis player Alexander Zverev, 29, after beating Tallon Griekspoor in Vienna, will become world No. 1 in the updated ATP rankings for the first time in his career. He will be the 30th leader of the rankings since 1973 and the second German after Boris Becker.
Otabek Yusupov
