Wladimir Klitschko promised a rematch after losing the world heavyweight title to Tyson Fury on Saturday.
Fury claimed the WBA Super, IBF and WBO heavyweight titles in Dusseldorf after winning with a unanimous points decision.
A rematch clause is believed to be in the fight contract and Klitschko said there would be another bout against the Brit.
“There will be a rematch,” the 39-year-old said.
“It is still early and I have to process things but there will definitely be a rematch.
“I was well prepared for this fight but he was quick for his height.”
With the loss, Klitschko’s record slipped to 64-4 in what was his first defeat since 2004.