William Hill Scottish Cup quarter - final ended in a 1 - 1 draw at home . moss sent off Celtic defender Virgil van Dijk and Dundee United 's ben Paton ( in a case of mistaken identity ) and Paul Dixon . Nadir ##eth opened the scoring for the hosts from the penalty spot . ben Griffiths missed a penalty before equalising for the Hoops .
William Hill Scottish Cup quarter-final ended in a 1-1 draw at Tannadice . Referee sent off Celtic defender Virgil van Dijk and Dundee United 's Paul Paton ( in a case of mistaken identity ) and Paul Dixon . Nadir Ciftci opened the scoring for the hosts from the penalty spot . Leigh Griffiths missed a penalty before equalising for the Hoops .