Pardew was sent off during Newcastle's win yesterday for headbutting Hull midfielder David Meyler.
Newcastle reserve team manager Willie Donachie left the club last month after allegedly striking a player and Bruce said: “Donachie lost his job three weeks ago. I’ve seen it before in dressing rooms and I’ve seen it with your own players, but never from an opposition manager.
“It’s for Alan to deal with the consequences. I’m sure he regrets it."
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