Sonny Bill Williams has teased that his upcoming boxing bout against Paul Gallen will bring out a dark side in him

The two-time Rugby World Cup winner and former league star will face the former Cronulla Sharks skipper in Sydney on July 16 - after almost a decade of verbal jabs between the pair.

Williams insists he doesn't hate Gallen - but admits he'll need to tap into a different state of mind due to their history.



39-year-old Williams' last fight in 2022 was his first professional loss - a fourth round stoppage at the hands of former UFC fighter Mark Hunt.