Muston is an inside midfielder who during the TAC Cup in 2005, averaged 23 disposals and nine contested possessions which included six hardball-gets.
In 2007, Muston played with the Box Hill Hawks, the Victorian Football League team associated with Hawthorn.
Muston was expected to make his debut at senior level in 2008 but during a pre-season match against Adelaide on 1 March 2008, Muston fell to the ground while going for a tackle and limped off after he suffered another setback to his knee by tearing the reconstructed ACL, and was on the sidelines for the rest of the 2008 season.
[2] After three ACL reconstructions to his knee, Muston made an excellent debut with the Hawks on 24 May 2009 against Melbourne at the MCG, racking up 31 disposals (24 kicks, 7 handballs), a goal.
Hawthorn fans were impressed with Muston's debut because of his remarkable kicking accuracy.