Willie Collum helps ex-Rangers star to first Champions League goal

Controversial Scottish referee awards a Champions League penalty to Young Boys which is duly dispatched by ex-Rangers striker Cedric Itten.

The remarkable Willie Collum Rangers v Celtic stat which will leave fans of both teams open-mouthed

Christopher Jullien's second half strike sees ten-man Celtic claim dramatic Scottish League Cup final victory over Rangers

Champions League: Alfredo Morelos an unwanted side-issue as Rangers face crunch game against PSV

Kirk Broadfoot claims Willie Collum's penalty decision in Rangers' 2010 Celtic Park win was a STONEWALLER – The Scottish Sun

Willie Collum called out over Rangers and Ross County blunders as ex-ref blasts 'cheap' SPFL decision - Football Scotland

What time and TV Channel is Celtic v Rangers? Kick-off time, TV and live stream details for Scottish Cup Old Firm derby game

Fans laugh at Old Firm's 'angry' ref for 'wrestling' stars - Daily Star

Willie Collum reveals how close he came to quitting as referee recalls Christmas shopping abuse - Daily Record

Willie Collum to referee Celtic v Rangers

Furious Steven Gerrard blames referee for his first defeat as Rangers boss against Celtic

Rangers vs Celtic LIVE REACTION as Tierney's season could be OVER, Gio backed, Hateley slams lack of investment