When Campbell was a boy, he would go over the county border to Lancashire to watch Burnley F.C. with his father. He remains a lifelong Burnley supporter and writes about their exploits in a column called "Turf Moor Diaries" for the FanHouse UK football blog. He is regularly involved in events with the club. He was heavily involved in rescuing the club from potential bankruptcy, gaining the support of many high-profile public figures. He was one of the founders of the University College of Football Business, based at Burnley's stadium.