The decision is not a surprise, as incidents occurred on March 8th when Celtic won the quarter-final of the Scottish Cup against Rangers at Ibrox Stadium. The match was won by Celtic 4-2 in the penalty shootout. The incidents led to dozens of arrests after supporters of the Rangers club invaded the pitch to attack Celtic fans celebrating their team's qualification. The two clubs were sanctioned with a home match in the Scottish Cup behind closed doors. An independent inquiry concluded that scenes of "brawl" and violence that put lives in danger were narrowly avoided. The Rangers had proposed to reduce the number of tickets for Celtic supporters to 300 for a League Cup match on September 13th. The two teams will meet again on September 20th at Celtic Park in the Premiership.