A fumble from Reading goalkeeper Adam Federici in extra time handed Arsenal a 2-1 victory and a place in the FA Cup final. Read Full Story
Adam Rooney's 39th minute goal wins it and secures European football for the Dons
Don Daniels replaces Willo Flood who receives a warm round of applause from the Dons support as he leaves the pitch.
Just three minutes of stoppage time to go - as things stand Aberdeen are guaranteed European football next season. A draw would be enough to secure fourth place but Dons still leading 1-0.
Highly rated youngster Alistair Coote comes on for his Dundee United debut, replacing holding midfielder Calum Butcher as Jackie McNamara tries to increase the attacking threat in his team.