Gamble spent almost all of the 2006 season playing for the Geelong VFL team, rotating as a midfielder and forward, also noted as a prolific high-flyer[1].

He has shown a high skill level, and his light frame (78 kg) is the only thing likely to hinder him from gaining regular selection in the near future.

Gamble impressed in the pre-season after kicking 5 goals against a strong Port Adelaide side in an exhibition match in London.

Many predicted he would make his senior breakthrough this year, provided he stay injury-free and he has managed to do so, being included in the Cats squad in round ones and two, kicking 4 goals as a small roving forward before succumbing once again to injury, but after a one-week absence he returned to the Cats lineup against St Kilda in round 4, however his single major wasn't enough to retain his place.

2011: St Kilda era He was handed a lifeline in the 2010 draft, with the saints using their 4th round pick to secure Gamble after he was delisted by Geelong at the end of 2010.