Ben Shelton, Cincinnati Open, Alexander Zverev, Jiri Lehecka, ATP Head-to-Head, Masters 1000, tennis quarterfinals, Mardy Fish, 141 mph ace, nine-match streak, Top 5 debut, ATP Rankings, Zverev vs Shelton, Cincinnati tennis, ATP tennis
Ben Shelton reached his first Grand Slam semifinal by edging Frances Tiafoe 6-2, 3-6, 7-6 (7), 6-2 at the US Open in a back-and-forth contest filled with huge hitting by both