A Queensland State of Origin and Australia national representative forward, he previously played for Canterbury-Bankstown, Sydney Roosters, Gold Coast Titans and Manly-Warringah.

Myles was a Canterbury junior and a housemate of fellow future NRL stars Sonny Bill Williams and Johnathan Thurston.

[2] As 2004 NRL premiers, the Canterbury-Bankstown Bulldogs faced Super League IX champions, Leeds in the 2005 World Club Challenge.

At club level, Myles played in Canterbury's 2006 preliminary final defeat against the Brisbane Broncos at the Sydney Football Stadium.

Sydney Roosters imposed a fine of $10,000, 20 hours of community charity work and forced him to undergo alcohol counselling.

At 8am on 5 July 2009 Myles was found drunk and naked on the fire escape of the Crowne Plaza in Terrigal, New South Wales.

[13] He was also named the 2012 Gold Coast Titans season's best player and awarded the club's annual Paul Broughton Medal.

In game 1 of the 2013 State of Origin series, Myles was involved in a fight with New South Wales player Paul Gallen.

[19] Following his retirement from playing, Myles has worked with the Queensland rugby league team during the annual State of Origin series under head coach and former teammate Billy Slater.