GLASGOW, SCOTLAND - NOVEMBER 26: A fan walks past a Celtic logo prior to the UEFA Europa League Group A match between Celtic FC and AFC Ajax at Celtic Park on November 26, 2015 in Glasgow, United Kingdom. (Photo by Mark Runnacles/Getty Images)
GLASGOW, SCOTLAND - NOVEMBER 26: A fan walks past a Celtic logo prior to the UEFA Europa League Group A match between Celtic FC and AFC Ajax at Celtic Park on November 26, 2015 in Glasgow, United Kingdom. (Photo by Mark Runnacles/Getty Images)