Sir Alex Ferguson will probably not look back too fondly on 2012, having seen his Manchester United team eliminated in the group phase of the UEFA Champions League, beaten by Athletic Bilbao in the round of 16 of the UEFA Europa League and surrender their Premier League title to neighbours Manchester City on goal difference. But United are United and Ferguson is Ferguson – two veritable institutions with a shared history stretching back 25 years, as evidenced by Robin van Persie’s decision to join them before the start of the 2012/13 season.