When you step out of the shadows the spotlight that greets you can often be paralysing but Titans prop Jarrod Wallace says that if he hadn't left the Broncos he may never have realised a potential that has him on the verge of an Origin debut.

Wallace joined the Queensland camp as 18th man following the withdrawal of Johnathan Thurston on Thursday and is now a Nate Myles knee injury or other emergency away from running out for the Maroons at Suncorp Stadium next Wednesday night.

For a player long considered a future Origin prospect but whom had started in just 10 of his previous 73 NRL games, leaving the sanctuary of the Broncos to become a prized recruit at the Titans put Wallace in a position where he had to sink or swim.

He has revelled in the extra responsibility and become one of the most durable and industrious front-rowers in the game, averaging 144 metres and 33 tackles from 59 minutes per game to become the leader of the Titans pack.