Wladimir Klitschko's manager has ruled out a rematch between his fighter and David Haye but said a contest against brother Vitali Klitschko could happen.
Haye failed in his bid to unify the heavyweight division after a unanimous points decision defeat by Wladimir on Saturday in Hamburg's Imtech Arena.
"There's no chance of a rematch," Bernd Boente told BBC Radio 5 live.
"Wladimir will now move on. Vitali mentioned he would be interested in knocking Haye out."
Boent added: "The fight could happen later this year or at the beginning of next year."
Meanwhile, Boente stated that Wladimir was keen to fight the winner of the British and Commonwealth contest between Tyson Fury and Dereck Chisora in July at Wembley Arena.
"An interesting future opponent for him could be the winner of that fight," said the manager.
Klitschko has twice pulled out of voluntary defences against Chisora in the past eight months.
Meanwhile, Boente also branded Haye a "sour loser" after the British boxer said that a broken toe was partly to blame for his defeat.
"The injured toe is complete nonsense," added Boente.
"To talk about the injury means he's just a sour loser. You either take the fight or cancel it. You don't talk about that nonsense afterwards. Wladimir was disappointed about that. It was a one-sided fight."
He also believed that 30-year-old Haye "crossed the line" when it came to promoting the fight.
"He promoted the fight with all this trash talk. We talked to different journalists and they gave us a hug and said they hoped Wladimir would beat him," continued Boente.
"It's a question of crossing the line. Regular teasing of an opponent is OK, but T-shirts with pictures of decapitated heads is not."