Johnathan Thurston of the Cowboys runs the ball during the round 10 NRL match between the North Queensland Cowboys and the Sydney Roosters at 1300SMILES Stadium on May 18, 2013 in Townsville, Australia.
Billy Slater Photos Photos: NRL Rd 5 - Storm v Warriors
David Klemmer of the Bulldogs is tackled during the round five NRL match between the Sydney Roosters and Canterbury-Bankstown Bulldogs at Allianz Stadium on April 4, 2014 in Sydney, Australia. (April 3, 2014 - Source: Cameron Spencer/Getty Images AsiaPac)
Gavin Cooper of the Cowboys washes away blood coming from a head wound during the round nine NRL match between the South Sydney Rabbitohs and the North Queensland Cowboys at ANZ Stadium on May 10, 2013 in Sydney, Australia.
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Roosters v Dragons: Sonny Bill Williams of the Roosters runs with the ball during the round seven NRL match between the Sydney Roosters and the St George Illawarra Dragons at Allianz Stadium on April 25, 2013 in Sydney, Australia.