Ben Shelton's Australian Open quarterfinal foe, Lorenzo Sonego, produced the shot of the tournament — diving to his left for a volley with so much spin that the ball bounced on one side of the net, then floated back over to the other — but it was the American who ended up with the victory Wednesday.

Australian Open semifinals are set. Wednesday's matches finalized the opponents, and there is one American left standing in men's singles: 22-year-old Ben Shelton. Shelton, the No. 21 seed, won a grueling quarterfinal against unseeded Cinderella Lorenzo Sonego,

The 21st seed Ben Shelton is through to his second Major semi-final at the Australian Open, the first in Melbourne. The young American ousted Lorenzo Sonego 6-4, 7-5, 4-6, 7-6 in three hours and 50 minutes, remaining on the title course.