Rangers and Celtic's decision to ban Andy Walker "an absolute disgrace" and warned it could jeopardise future television deals.
The Sky Sports pundit has been barred from both Celtic Park and Ibrox after the clubs took objection to his comments. Walker publicly questioned the finances of Rangers, while he was coruscating about Celtic 's controversial decision to head to Qatar for a mid-season training camp.
And former Sky pundit Nicholas has warned that kind of stance could undermine any future TV deals as he leaped to the defence of his ex colleague.
He wrote in his Daily Express column: "It is an absolute disgrace how Andy Walker has been left exposed by Celtic and Rangers. "I haven't spoken to my old friend in a wee while, since I left.
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