Briton Tony Bellew and Ukrainian Oleksandr Usyk both say they are “ready” to fight each other.
Usyk, 31, became the first man to hold all four world cruiserweight titles – WBO, WBC, WBA and IBF – when he beat Murat Gassiev on Saturday to win the inaugural World Boxing Super Series.
After the fight, Bellew tweeted: “Usyk I was born ready. Let’s get this done.”
The Olympic 2012 gold medallist, who has won all of his 15 professional fights, replied: “I’m also ready.”
Bellew, 35, has beaten compatriot David Haye at heavyweight in his past two fights, and his promoter Eddie Hearn says talks about a fight against Usyk will take place this week.
“Tony has felt fantastic up around the 15st weight and I’m not sure he will make cruiser again but I know with Usyk’s desire to move to heavyweight it certainly wouldn’t be a deal-breaker,” he told Sky Sports.