World heavyweight champion Daniel Dubois has withdrawn from his scheduled title defence against Joseph Parker on Saturday after falling ill.
Dubois, who holds the IBF title, underwent a medical examination in Saudi Arabia and missed a scheduled press conference, prompting the decision to pull out. Details of his health status have not been released.
"If he is ill, I hope he gets well soon and I'm looking forward to Saturday and a great show," said Parker, who will now face last-minute replacement Congolese fighter Martin Bakole.
British-born Dubois took the interim belt in June by beating Filip Hrgovic and was upgraded to champion when Oleksandr Usyk vacated the title due to his rematch clause with Tyson Fury.
Dubois then defended his title in September with a knockout win over fellow Briton Anthony Joshua at Wembley.
Former world champion Parker claimed the World Boxing Organization (WBO) heavyweight title in 2016 by defeating Mexican Andy Ruiz. He lost the title to Joshua in 2018.

Fernandes equals league assist record in United's 3-2 win over Forest
Neymar loses cool over botched substitution in final World Cup audition
Former Scotland rugby international Scott Hastings dies
UAE Team Emirates XRG's Jhonatan Narváez claims Giro d’Italia stage victory
Chelsea confirm Xabi Alonso appointment on four-year deal
