Derek Chisora, a 42-year-old British heavyweight, has announced he is not retired and will fight Russian boxer Murat Gassiev in December. The announcement came at an IBA news conference, reversing his earlier retirement after a loss to Deontay Wilder in April. Chisora will compete for the IBA belt and Gassiev's WBA super heavyweight title, though the exact belts are uncertain. The fight is expected to take place in London or Manchester. Chisora has never won a world title and aims to change that.
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