The former Norway captain questioned sacked Fulham boss Felix Magath's methods this week, but Warnock hailed Hangeland as the model professional.
"I've got to see some players play, so we've got to give people chances," said Warnock on talkSPORT.
"Brede's such a gentleman: when he arrived at the club he said to me 'gaffer you won't have any problems from me, I'll work hard and I'm here for you'.
"He's such a gentleman like I say and he's a real pro.
"So I'm looking forward to seeing him play on Wednesday."
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