Sinner ready for his semi-final against Shelton: "He's one of the biggest servers on the circuit".

Jannik Sinner and Ben Shelton will face off on Friday in the Australian Open semi-finals in the night session.

Ahead of their sixth meeting (Sinner leads 4-1), the world No.1 gave his thoughts on his opponent in a press conference: "It's a tough match. He's one of the biggest servers on the circuit and a very aggressive player.

He's also a very complete player, who can go to the net but also stay at the back of the court. We'll see what the playing conditions are like.

It's a complicated match for both of us. We know each other a little better now. We had some close matches last year, so we'll see what happens."