World No.1 Carlos Alcaraz retired from his Paris Masters quarter-final against Holger Rune on Friday with an abdominal injury, while defending champion Novak Djokovic made quick work of Italy’s Lorenzo Musetti. 

Alcaraz, the reigning US Open champion, lost the first set and was trailing 3-1 in a second set tie-break when he decided to stop, having received treatment to his left side at the previous changeover. “It’s something wrong on the abdominal,” said Alcaraz.