Young goalkeeper Mooney first made the bench for the youth team in September 2008 while he was still a member of the under 15 squad. He didn`t get on the pitch that day and had to wait patiently for his chance as Nick Thomas and Grant Herbert competed for the youth team number one shirt. Mooney got a break early in the 2010/11 season when a hand injury ruled out reserve keeper Andy Rafferty. Now established in the youth team, the youngster played his first game for the reserves as cover for Rafferty in August 2010, and also travelled with the first team squad for the televised match at Milton Keynes a few days later.