Mandarić resigned as chairman of Portsmouth on 21 September 2006. Since then, Portsmouth appeared to prosper, with successive top-ten Premier League finishes and an FA Cup win in 2008. The club, however, was relegated in 2010 and have since dropped dramatically, suffering the ignominy of successive relegation in 2011–12 and 2012–13, ending in the fourth tier of English football, League Two.