Old Firm derbies are famously heated affairs, and Artur Boruc certainly brought this up a notch during his time at Celtic.

The Polish goalkeeper enjoyed the most successful spell of his career at Parkhead between 2005 and 2010 as he lifted six trophies, and it's fair to say he made his mark off the pitch too.

Martin O'Neill is currently gearing up for his first derby in over 20 years as the Hoops meet Rangers in the Scottish League Cup semi-finals.

The Northern Irishman has been drafted in as interim boss following Brendan Rodgers' exit , two decades after he last managed the club between 2000 and 2005.

After kicking things off with a 4-0 thrashing of Falkirk on Wednesday, O'Neill now has a mouth-watering second match ahead of him.

With Celtic trailing leaders Hea

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