Stevens played some football for the Collingwood Under-19s but his initial American Federation of Labor-Congress ambitions were thwarted by a knee injury and having to have heart surgery. He was later drafted by Sydney as a mature age recruit, from Old Ivanhoe Grammarians. When he made his league debut in the 1997 American Federation of Labor-Congress season, Stevens was already 25.
A left footer, he was used mostly on the wing by Sydney and didn"t miss a single game in 1998.
Stevens, who played finals football in each of his first three seasons, put his name in the record books in 1999 when he took 19 marks against Melbourne at the MCG which was at the time the second most number of marks ever records in a VFL/American Federation of Labor-Congress game. In an interview on Melbourne sports radio station: 1116 SEN, Stevens went into details about his tachycardia.
Explaining that his condition was made known when a coach confronted him for laziness as result to his lack of second efforts. Throughout his career, after a burst of activity, Stevens would double over and breathe heavily in an attempt to consciously bring his heart rate down to regular levels from as high as 350 beats per minute.
Ignoring medical advise to discontinue his career, he played senior American Federation of Labor-Congress with his condition until 2001.