Playing career
A Northcote Tigers junior who attended Northcote college,Locke first gained attention when he played for the Auckland Lions in the Nswrl Premier League in 2007. In 2008 he was signed by the New Zealand Warriors and played in the Toyota cup, finishing the season as the competition's second highest points scorer.On 31 May 2009 Locke made his first grade debut in round 12 against the West tigers. He scored two tries kicked one goal on debut as the Warriors won 14-0. The Warriors failed to make the finals of the 2009 Nrl Premiership, but Locke finished the season as the clubs top point scorer.He finished his Toyota Cup career at the end of 2009,Having made thirty appearances,scoring eighteen tries and ninety nine goals.On 27 June 2010,Locke grabbed his first hat-trick in first grade, bagging three tries as the Warriors defeated the Sydney Roosters 20-18 at AMI stadium in Christchurch.In scoring his third and final try,Locke injured his hip when colliding with the goalpost,but it was later disclosed the injury was not as serious as was first feared.