Nigerian-British fighter Anthony Joshua says he has watched his fight with Oleksandr Usyk and learnt his lessons.
Joshua lost his IBF, WBA, WBO heavyweight titles on September 25 to the Ukrainian in front of a 65,000 crowd at Tottenham Hotspur Stadium in London.
In an Instagram post on Thursday, the 31-year-old said he had also analysed his preparations and urged his fans not to worry about him.
“I’ve watched the fight, analysed my preparations & identified my mistakes. I’ve learnt my lesson,” he wrote.
“Thanks for sending love & checking in. Don’t worry about me. My spirit is strong!”
Joshua was forced to fight the WBO mandatory challenger and former undisputed cruiserweight champion Usyk after his high-profile fight with fellow Briton Tyson Fury collapsed last summer.
Fury said he was “absolutely wounded” by Joshua’s loss to Usyk.
Joshua had taken to social media shortly after his defeat, the second in his career after Andy Ruiz landed the first last year, to inspire himself and fans.
“Keep positive even if the world’s crumbling in front of you! London I love you & thank you each and every time!” he wrote.
The Nigerian’s promoter Eddie Hearn had confirmed the boxer would trigger the rematch clause.
