Callum and Paul Smith, Gavin McDonnell and Kid Galahad have been confirmed on the undercard of Kell Brook’s showdown with Gennady Golovkin on September 10.

IBF welterweight champion Brook (36-0-KO25) will step up two weight divisions when he challenges WBA Super, WBC and IBF middleweight king Golovkin (35-0-KO32) at The O2

Source: SkySports.com

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