A key position player, Watson began his career primarily as a tall defender, then later transitioned into a forward. Originally from Victoria, Watson attended and played school football for Penleigh and Essendon Grammar School and Pascoe Vale. He played TAC Cup football for the Calder Cannons. He represented Vic Metro at the 2008 AFL Under 16 Championships[2] and 2010 AFL Under 18 Championships, where he was selected as a defender in the Under 18 All-Australian team.[1]
He played sporadically for Carlton over his five years on the senior list, playing a total of 23 games. His highest return was eight senior matches in 2012. He never won a regular position in the senior team, and was delisted at the conclusion of the 2015 season.[6] He played 69 games and kicked 44 goals for the Northern Blues/Bullants during that time.[7]
He became known at Carlton for his long, accurate left-footed kicks out of defence, and as a result, Carlton fans would shout "woof!" whenever Watson kicked the ball: Watson was the fourth long-kicking left-footed Carlton player to receive this traditional treatment, after Val Perovic in the 1980s, Ang Christou in the 1990s and Chris Bryan in the 2000s.[8]