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."
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."
