Olympic champion Alexander Zverev won its 18th professional title in Vienna and added its successful tennis year to the next highlight. The 24-year-old Hamburger defeated on Sunday in the final of the ATP tournament in the Vienna Stadthalle the American qualifier Frances Tiafoe 7: 5, 6: 4. In the German leaderboard Zverev moved the same with the former Wimbledon winner Michael Stich, who had won 18 titles in his entire career. Thus, Zverev has only Boris Becker in the national ranking. Germany s most successful tennis player won 49 tournaments in his career, including six Grand Slam events. These most important titles are Zverev so far rejected. For the world ranking lien in Vienna, the fifth tournament victory of the season was already in Vienna - only in 2017, he had also triumphed five times. In addition to Olympia Gold in Tokyo Zverev has already won the Masters events in Madrid and Cincinnati this year and also won in Acapulco. In Vienna, Stich (1991) and Becker (1996) had alrea