British No 1 Draper was left hobbled after a brutal run to the last 16 and called time after two sets against the classy Alcaraz, who could meet Djokovic in the quarter-finals

Novak Djokovic v Tomas Machac score before Jack Draper v Aleksandar Vukic - Jacob Fearnley is out after a straight-sets defeat to Alexander Zverev before Jack Draper takes on Australian favourite Alek

Alcaraz faces a mouthwatering quarter-final clash with Novak Djokovic, who refused to do his regular on-court interview after winning. He later explained he was protesting after a TV presenter working with the host broadcaster made "offensive" comments.

Jack Draper described his hip injury as a "ticking time bomb" and admitted he will likely have to manage it for the rest of his career.

The British No 1 faces a stiff task as Alcaraz looks to continue his chase for a career grand slam before Djokovic is in action later

The British No 1 was left hobbled after a brutal run to the last 16 and called time after two sets against the classy Alcaraz, who could meet Novak Djokovic in the quarter-finals

Draper takes on Australian favourite Aleksandar Vukic after Novak Djokovic defeated Tomas Machac despite taking a medical timeout

Djokovic has beaten Alcaraz four times in seven overall meetings, including a victory in the final at the Paris Olympics last August

Carlos Alcaraz stayed on course for a blockbuster Australian Open quarter-final with Novak Djokovic when marathon man Jack Draper retired during their last-16 clash on Sunday.

Carlos Alcaraz passed on a touching get-well-soon message to Jack Draper and backed the British number one to ‘come back stronger’ after he retired midway through their fourth-round meeting at the Australian Open.

British No.1 Jack Draper is open to working with super coach Andy Murray in the future. The US Open semi-finalist insisted he will be able to go “100%” at the Australian Open despite a pre-season disrupted by a hip injury.