Dereck Chisora has honoured his agreement with David Haye and delivered £20,000 to the African Caribbean Leukaemia Trust.
Chisora and Haye entered into a side-bet on the outcome of their heavyweight clash, the loser pledging to make a donation to the charity of the winner's choice.
Haye delivered a devastating knockout in the fifth round of their fight at Upton Park, leaving Chisora to make good on the agreement.
Chisora presented ACLT co-founder Orin Lewis with the cheque today, with Lewis pledging that the money will be well spent.
Lewis said: "We are sincerely grateful to them both. The generous donation will go towards securing further bone marrow, blood and organ donation recruitment drives throughout the UK in addition to delivering awareness campaigns throughout the year."
Haye is long-standing patron of the ACLT, a charity founded in 1993.