 Treacy played 14 league games for the Saints through the season, scoring one goal away to Derry City.He featured in all 4 games in the club's UEFA Europa League campaign but was not in the squad for the League Cup Final as Pats beat Limerick 4–1 to retain the trophy.On 29 November 2016, Treacy came out and spoke to the media about how 'Depression has been an issue for all of my career', his struggles with it through 2016 and how he was eyeing a possible comeback to the game in 2017.