At the peak of his career, from 2015 through 2018, Steven polled double-figure votes in the Brownlow Medal in each season, highlighting his consistency and value to the Saints' midfield.

His explosive pace and ferociousness at the contest culminated in a career best season in which he won the 2013 Trevor Barker Award for St Kilda's best and fairest player.

Steven played in all 22 games for St Kilda in 2015, averaging 27 disposals and kicking 9 goals.

[8] In February 2019, Steven took an indefinite leave from football to deal with mental health problems.

[13] Without having played a game for Geelong, Steven made headlines in May 2020 after suffering what was reported as a "non-life threatening" stabwound to the chest.