Djoko: Pressure is on Stan

Wawrinka is the defending champion at the Australian Open, and the Serb feels that fact might put additional pressure on him as they face off at Melbourne Park.

Both men are in top form, with Djokovic having thrashed Milos Raonic in their quarter-final and Wawrinka defeating world number five Kei Nishikori in straight sets.

Djokovic said: "Being the defending champion, obviously he's got some of the pressure here. He is facing this kind of role for the first time in his life.

"Obviously I'm going to play Stan, who is the defending champion here. We played five-set matches in 2013 and '14 Australian Open. I'm going to be ready for a fight."

He added: "Knowing that I have raised the level of performance, and probably playing the best match of the tournament so far is affecting my confidence in a positive way."