 Campion signed with League of Ireland Premier Division club Sligo Rovers in August 2016.Manager Dave Robertson said that "he really fits what we're looking for" as Campion scored on his debut, in a 5–0 win over Wexford Youths on 5 August.He signed with Cork City in November 2016, with manager John Caulfield saying that "he’ll create lot of goals and score a lot of goals, and that’s what we need".