Dillian Whyte has a rematch clause to fight Alexander Povetkin again before the end of 2020, promoter Eddie Hearn confirmed.
Whyte was brutally knocked out by Povetkin after previously flooring his opponent twice - his hopes were ended of finally forcing a mandatory WBC title challenge against Tyson Fury.
"We have a rematch clause," Hearn told Sky Sports.
"The first thing Dillian said was: 'Get me that rematch, get me that rematch'.
"Povetkin is mandatory now, but the only person who would get called to negotiate fighting the winner of Fury vs Deontay Wilder was Dillian Whyte.
"We'll exercise that rematch clause. We'll look to make that before the end of the year and it's a huge fight."
Whyte had aimed to end a wait of over 1,000 days as the WBC's No 1 contender by challenging for the world title but must now regroup.
"I can't quite believe it," Hearn said. "When the punch landed, I felt like I was in some dream.
"The fight was over, virtually, Povetkin hadn't started well, I thought Dillian Whyte was measuring up.
"He had a great finish to the round when he knocked Povetkin down.
"I felt that it was over, but this is the drama of the sport, this is the drama of heavyweight boxing.
"One punch can change everything."
Povetkin reacted: "I didn't feel that I would finish the fight like this
"I was watching his fights and taking account that he was missing uppercuts from the left and right."
Watch Whyte-Povetkin and Taylor-Persoon 2 repeats on Sunday, at 8am, 1pm and 6pm, on Sky Sports Box Office. Book it via your Sky remote or book it online here. Even if you aren't a Sky TV subscriber you can book and watch it here.