Six minutes before the half-time of the Europa League Group B match HJK Helsinki – AC Torino, referee Arnold Hunter (NIR) got seriously injured and left the field on a stretcher. Reportedly, he broke his Achilles tendon. The game was played on artificial turf, on snowy conditions. Hunter was replaced by the additional assistant referee Raymond Crangle, whose position was taken by the fourth official Stephen Bell. Finnish assistant referee Sami Nykänen was called to become fourth official.
The initial UEFA appointment
HJK Helsinki – AC Torino
Referee: Arnold Hunter (NIR)
Assistant Referee 1: Richard Storey (NIR)
Assistant Referee 2: Andrew Neeson (NIR)
Additional AR 1: Raymond Crangle (NIR)
Additional AR 2: Mervyn Smyth (NIR)
Fourth Official: Stephen Bell (NIR)