Shelton, Tiafoe in spotlight as Zverev aims to build on Grand Slam success
- Grand Slam: 19 events in the last 90 days
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What happened
Top-seeded Alexander Zverev is the only Grand Slam champion still standing as the US Open men's singles hit the semi-final stage on Friday, when all eyes will be on the all-American matchup between eighth-seeded Ben Shelton and 11th seed Frances Tiafoe.He upset third-seeded Canadian Felix Auger-Aliassime in the second round.
Summary assembled by rule from the sources below