Us Open / 239km ACE Set The Fastest Time Sheldon: Thought The Hand Would Be Broken

Ben Shelton, 20, won 6-4, 6-3, 4:6, 6-4 to advance to the semifinals after hitting two ACES at 149 MPH (239 km/h) against Tommy Paul in the fourth round of the U.S. Open.

Shelton and Paul played each other in the final four of the Australian Open this year, with Paul winning in four sets. Sheldon after the performance of ordinary, but he returned to the hard court to break out again, today's game issued two super-fast ACE balls to shock the court, and beat Paul to revenge, becoming the youngest player to break into the US Open men's singles 8 landlord player since Andy Roddick in 2002. Shelton will face compatriot Frances Tiafoe in the final eight.