Jack Draper withdrew from his fourth-round match with Carlos Alcaraz here at the Australian Open after suffering what looked like a recurrence of the hip trouble that had dogged him during the off-season.

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

Carlos Alcaraz has reached his 10th career Grand Slam quarterfinal, tied for the most by a man before his 22nd birthday, by advancing at the Australian Open when 15th-seeded Jack Draper stopped playing because of injury after dropping the first two sets of their fourth-round match.