Joseph Parker is out of his scheduled bout with Dereck Chisora at the O2 Arena in London on Oct. 26, Eddie Hearn has confirmed.

The New Zealander (26-2, 20 KOs) is suffering from illness, Matchroom Boxing promoter Hearn said.

Hearn took to Twitter to announce the development, adding: “We are working on a suitable replacement and will make a further announcement this week.”

Parker last fought in June, defeating Alex Leapai by TKO.

His most notable bouts in Britain have come against Anthony Joshua and Dillian Whyte, both of whom defeated Parker in 2018.

Meanwhile, Britain’s Chisora (31-9, 22 KOs) defeated Artur Szpilka by KO in July in his most recent contest.