Tony Bellew is considering retirement despite springing a surprise by defeating former WBA heavyweight champion David Haye on Saturday.
Bellew, who holds the WBC cruiserweight title, stopped Haye in the 11th round of their bout at the O2 Arena in London - the first time the Liverpudlian has competed professionally in the division.
Haye underwent surgery on an Achilles injury aggravated in the fight, while Bellew broke his right hand during the early exchanges.
Despite breaking new ground in his career, the 34-year-old feels it may be time to hang up his gloves.
"I don't know how many times more I can put my body and family through this," Bellew told BBC Radio 5 live.
"It [retirement] is an option. It's something I'm thinking about."
Bellew said it would take "something special" to get him back into the ring, suggesting he considers himself worthy of a heavyweight title fight.
He said: "I don't know what's going to happen, but it will have to be something special.
"I am the best heavyweight in the world outside the champions, and none of them have a name like David Haye on their record, so what does that mean?"