BOBBY Madden and Willie Collum have been confirmed as the referees for the 2014 Scottish Cup semi-finals.
Madden will oversee the clash between Rangers and Dundee United on Saturday, 12 April.
Collum is the man in the middle for Aberdeen against St Johnstone the following day.
Both last-four ties will be held at Glasgow’s Ibrox Stadium, with 12:45 BST kick-offs for live television coverage on BBC Scotland and Sky Sports, and include additional assistants for the first time.
Fifa official Madden, who is regularly selected for Europa League matches, took charge of the League Cup semi-final between the Dons and the Saints back in January.
The 35-year-old will be assisted by linesmen Graham Chambers and Alastair Mather with Calum Murray the fourth official.
John Beaton and Alan Muir will act as additional assistant referees behind each goal, a system that was successfully trialled in last season’s Scottish Cup final.
Madden was one of the six officials involved in that experiment and has enjoyed another impressive campaign largely free of controversy.
He has officiated 39 games in all competitions this season, brandishing 111 yellow and eight red cards and awarding 11 penalties.
Gavin Harris and David McGeachie will be the linesmen and Steven McLean given the role of fourth official. Ramsdens Cup final referee Kevin Clancy and Brian Colvin are the additional assistants.
Uefa Elite official Collum has taken charge of 24 Premiership games this season, more than any other Category One referee, as well as four Champions League appointments.
The Religious Education teacher has dished out a remarkable 14 red cards in 38 games in all competitions with 108 yellows and 11 penalties.
He handled a 1-0 win for the Dons over the Perthshire side at the start of last month and sent off St Johnstone striker Steven McLean late on for a second booking.
Collum was also in charge of Aberdeen’s 2-1 defeat to Hibernian in the Scottish Cup semis two seasons ago.
League Cup winners Aberdeen are hunting a domestic cup double in manager Derek McInnes’s first full season in charge at Pittodrie.
The Saints have reached the semi-final stage for the fourth time in the last eight seasons but have never progressed to the final in their 130-year history.
Last season’s semi-finals were overseen by Craig Thomson and Iain Brines and produced two thrilling seven-goal thrillers at the national stadium.
Collum in Europa League action Image via 2pictures.Zimbio