LONDON — Derek Chisora may not get the chance to fight for a world title on his 50th professional outing, according to promoter Frank Warren.

The 41-year-old last boxed in February when he outpointed Otto Wallin at Co-op Live Arena in what was the Zimbabwe-born Londoner’s 49th fight.

Within a month of the victory, the IBF designated Chisora (36-13, 23 KOs) as their mandatory challenger which put him in line for a dream crack at the world titles in what he insists will be the final fight of his 18-year career.

However, the waters were muddied when the IBF also ordered Efe Ajagba and Frank Sanchez to fight each other in a final eliminator for their title which is, like all the others major belts, held by the injured Oleksandr Usyk.

Ajagba has since withdrawn from that fight, too, leaving Miami-based Cuban Sanchez (25-1, 18 KOs) without a dance partner.

Chisora also has no fight in the books and it looked like he may just wait his turn to make sure his 50th fight would have the IBF world title on the line. But that would represent a long wait given the winner of Joseph Parker’s October 25 clash with Fabio Wardley is the next in line to face Usyk.

Warren said that the IBF may choose to order Chisora into an eliminator given his world title shot would not come until the second half of next year at the earliest.

“At the moment he is mandatory challenger,” Warren said. “But his turn is later.

“The problem he may have is that the IBF may order him to fight or he may lose his ranking.

“I don’t know if his next fight will be a world title fight. The governing bodies have decided the order that everyone gets their shot.”

When asked whether he would advise Chisora to fight or to wait for a world title shot, Warren added: “It’s up to him.

“If he boxes, we will put him in a big fight but he has to be in a big fight and that’s what he wants because he wants to earn big money. You earn big money from being in big fights.”

Queensberry also promote another heavyweight in his 40s who last boxed in February in the shape of Zhilei Zhang.

A fight with Daniel Dubois had been rumoured but Warren says they are exploring their options for the Chinese southpaw’s next outing following his sixth-round stoppage defeat to Agit Kabayel in Saudi Arabia on February 22.

“We’re sorting him out as well,” Warren said. “They are all fighting. None of them are sitting on their backsides, we are keeping them all busy. If they get beat we bring them back, we are with them.

“But they’ve all got to be in commercially viable fights, the guys want to earn money and the only way they’re going to earn money is by being in proper fights. You can’t say you want a warm-up and then this or that.

“That has been the undoing of a lot of big fights and we’ve stopped that.”