Ben Shelton has reached his first Australian Open semifinal by defeating Lorenzo Sonego 6-4, 7-5, 4-6, 7-6 (4) in an entertaining match.

Ben Shelton advanced to the semi-final of the hard court major after beating Lorenzo Sonego 6-4, 7-5, 4-6, 7-6 (7-4) at the Rod Laver Arena on 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.

Ben Shelton reaches his first Australian Open semi-final with a battling win over Lorenzo Sonego in Melbourne.

Defending champion Jannik Sinner dismisses concerns about his physical state to thrash home hope Alex De Minaur and reach the Australian Open semi-finals.

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 has expressed his relief after reaching a maiden Australian Open semifinal after battling to a 6-4, 7-5, 4-6, 7-6 victory over Lorenzo Sonego on Wednesday.