A chastened Roman Greenberg is looking to restore his reputation after the first professional defeat of his 28-fight career.
Greenberg was pummelled to a second round stoppage by veteran Cedric Boswell in an IBF North American heavyweight title bout in Atlanta, Georgia, last Friday.
A devastating right put the UK-based Israeli in trouble and the referee stepped in after Boswell, 39, unleashed some ferocious punches.
Back in London, Greenberg said he was fine physically but would have to deal with the mental scars. "I had a bad night and got caught. That's heavyweight boxing.