Philippe Clement ruled out taking Rangers fan feelings into account when considering a starting spot for John Lundstram against Celtic.
The Ibrox manager insisted he wouldn't consider the thoughts of supporters on Lundstram's role in the showpiece final on Saturday.
Lundstram endured a horror performance against Celtic in the final league meeting between the clubs this season.
The midfielder scored an own goal before being sent off in the first half for a rash challenge on Alistair Johnston.
The display earned scathing reviews from supporters with some demanding the midfielder not feature in the Scottish Cup final at Hampden.
However, Clement stated he would take the "emotion" out of the decision and base it on the things supporters don't see, like training and attitude.
He explained: "I will never make decisions about what fans are thinking because that's emotion and they don't see training, they don't know how the players are.
"I don't need to answer that question about John starting or not.
"It's about the decision with my staff about what I see in training and have seen in the last couple of months in the games."
READ MORE: Clement will take Rangers injury risks against Celtic in Scottish Cup
On whether he'd retreated to the players the need to keep their discipline, he added: "I did it two times before. It's one of my principles in our dressing room so that's not new.
"They were two different red cards [against Celtic]. As I said last time it was a split-second decision and a totally wrong one.
"The player knows that directly also in that moment and for sure the experienced guys.
"I don't think it was about losing the head, it was the wrong decision."
Why are you making commenting on The National only available to subscribers?
We know there are thousands of National readers who want to debate, argue and go back and forth in the comments section of our stories. We’ve got the most informed readers in Scotland, asking each other the big questions about the future of our country.
Unfortunately, though, these important debates are being spoiled by a vocal minority of trolls who aren’t really interested in the issues, try to derail the conversations, register under fake names, and post vile abuse.
So that’s why we’ve decided to make the ability to comment only available to our paying subscribers. That way, all the trolls who post abuse on our website will have to pay if they want to join the debate – and risk a permanent ban from the account that they subscribe with.
The conversation will go back to what it should be about – people who care passionately about the issues, but disagree constructively on what we should do about them. Let’s get that debate started!
Callum Baird, Editor of The National
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here