Ben Shelton has never been to a Grand Slam final, but he'll have to beat the No. 1 tennis player in the world to get there.

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.

Ben Shelton battled to a four-set win over Lorenzo Sonego to reach his second grand slam semi-final. The big-serving American made his breakthrough at the Australian Open two years ago with a run to the quarter-finals on his debut before bettering that at the US Open.