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GLASGOW, SCOTLAND - MARCH 01: Celtic's Norwegian manager Ronny Deila looks on during the Scottish Premier League match between Celtic and Aberdeen at Celtic Park on March 01, 2015 in Glasgow, Scotland. (Photo by Ian MacNicol/Getty Images)

GLASGOW, SCOTLAND - MARCH 01:  Celtic's Norwegian manager Ronny Deila looks on during the Scottish Premier League match between Celtic and Aberdeen at Celtic Park on March 01, 2015 in Glasgow, Scotland. (Photo by Ian MacNicol/Getty Images)