Martin O'Neill struggled to hide his disgust over his former side’s suicidal set piece defending after it cost them a first Old Firm victory of the season.The former Parkhead boss was back in his old stomping ground working as a pundit for Sky TV as John Kennedy’s side allowed a commanding position to slip through their grasp and failed to defeat Rangers on their own pitch for a third successive derby.
Alfredo Morelos bagged a crucial equaliser before halftime as Celtic’s Achilles heel of dealing with corner kicks struck once again.
And the Northern Irishman, who built his success on a defence which included giants such as Bobo Balde, Johan Mjallby and Joos Valgaeren, was scathing in his critique.
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