Williams signed with the Cronulla Sharks in 2004. However he was charged with an assault on team-mate Jeremy Smith, who was left with a fractured cheekbone, and sentenced to to two years jail at the Sutherland Local Court. New Zealand Herald, 29 June 2004 Williams was released after just over three months due to good behavior and decided to take up boxing.
However Canberra Raiders general manager Don Furner offered him a contract and Williams ended up playing two seasons for the Raiders between 2005 and 2006. The Canberra Times, 19 June 2005