[1][2] After a strong final year with Sturt in the SANFL and an All-Australian selection at the Under 18 national championships, Day settled on football.

Day made his AFL debut for the Gold Coast Suns against the Brisbane Lions[3] in round 7 of the 2011 season.

In 2016, with the Suns' list severely impacted by injury, coach Rodney Eade moved Day into defence where he proved to be an effective tall defender.

[4] He was expected to return to the forward line in 2017, but suffered a serious hip injury in the pre-season clash against the Brisbane Lions,[5] which ultimately resulted in him missing the entire 2017 season.

[7] It was later reported that the Brisbane Lions were considering signing Day as a potential replacement for the recently retired Joe Daniher.