Semi-final opponent Nick Kyrgios will receive a walkover into Sunday's final, where he will play either top seed and six-time champion Novak Djokovic or Britain's Cameron Norrie.Nadal, a 22-time Grand Slam champion, struggled with the injury in a gruelling five-set win against 11th-seeded American Taylor Fritz on Wednesday.Spanish sports daily Marca reported on Thursday that Nadal has a "seven-millimetre" tear to his abdomen but had still intended to play.But the 36-year-old scheduled a press conference at which he confirmed he was withdrawing."I have to pull out of the tournament.
As everybody saw yesterday I have been suffering with the pain in the abdominal area," he said."I have a tear in the muscle."Nadal, the second seed, was visibly in pain during his match with Fritz and was forced to take a medical time-out in the second set.But he returned to the court and twice recovered from a set down to win 3-6, 7-5, 3-6, 7-5, 7/6 (10/4) in four hours and 21 minutes.