GLASGOW , SCOTLAND - SEPTEMBER 10: Joey Barton of Rangers arrives at Celtic Park before the Ladbrokes Scottish Premiership match between Celtic and Rangers on September 10, 2016 in Glasgow. (Photo by Steve Welsh/Getty Images)
GLASGOW , SCOTLAND - SEPTEMBER 10: Joey Barton of Rangers arrives at Celtic Park before the Ladbrokes Scottish Premiership match between Celtic and Rangers on September 10, 2016 in Glasgow. (Photo by Steve Welsh/Getty Images)