A total of four Roosters players, Shannon Hegarty, Anthony Minichiello, Luke Ricketson and Michael Crocker, were selected to make their Test match débuts for the Australian national team in 2003.
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Nine Roosters players were selected to play in the mid-season 2003 State of Origin series: Craig Fitzgibbon, Craig Wing, Luke Ricketson, Bryan Fletcher and Anthony Minichiello for New South Wales; and Shannon Hegarty, Chris Flannery, Justin Hodges and Michael Crocker for Queensland.
River Shannon | Shannon | Molly Shannon | Claude Shannon | Sharon Shannon | Shannon Tweed | Shannon Noll | Antony Hegarty | Del Shannon | Shannon River | Shannon McNally | Shannon Elizabeth | Shannon Briggs | Shannon Airport | Bartle Bogle Hegarty | Shannon Ryan | Shannon Moore | Scott Shannon | John Hegarty | Elizabeth Killigrew, Viscountess Shannon | Tommy Shannon | Thomas Robert Shannon Broughton | Shannon Sharpe | Shannon McFerran | Shannon Kleibrink | Shannon Hoon | Shannon–Hartley theorem | Shannon Esra | Shannon Bennett | Shannon Bahrke |