Bruno Fernandes has demanded football changes the rules when it comes to players being booked for taking their shirts off following Manchester United's dramatic 4-3 win over Liverpool on Sunday.
The Red Devils took the lead through Scott McTominay, only for goals from Alexis Mac Allister and Mohamed Salah to turn the contest around.
United levelled again through Antony to force extra-time, with Liverpool restoring their advantage following a goal from Harvey Elliot.
However, the Red Devils rallied with goals from Marcus Rashford and Amad Diallo sending them through to the last four.
Bruno Fernandes wants football chiefs to change the rules after Man Utd's stirring FA Cup win over Liverpool
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In the closing stages of the contest, however, Amad was sent off.
Having already picked up a yellow card, the Ivory Coast international was dismissed for taking his shirt off as he celebrated.
And Fernandes has now called on the FA to change their rules, insisting it's something the sport 'has to change'.
"This moment has to be enjoyed and I think it's one of the rules football has to change," said the Portugal international.
"Because you should be able to celebrate the goal, obviously with respect to other clubs, to enjoy your moment.
"The thing with Amad, he got his reward because he's doing the right things.
"When you do the right things, you get a chance, and what is yours comes to you. He deserves it.
"Unfortunately, he got sent off, but it's part of the moment and part of being young."
Amad wasn't the only substitute who impressed as United mounted their comeback.
Antony's goal was impressive, with the Brazil international also shining at left-back when deployed there by manager Erik ten Hag.
Harry Maguire also made an impact, too, with the England star using his physicality to pose Liverpool problems in both boxes.
And Fernandes was delighted at the way United's squad players proved their worth on a significant day for his side.
"I think everyone who came on today made a huge impact," he added.
"I think the ones who started, the first 30 minutes were probably – we spoke in the dressing room about this – one of the best 30 minutes we had in the season.
"We know it's difficult to do it for 90 minutes against a team like Liverpool, but we could have done it better for a long spell in the game.
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Amad was sent off after taking his shirt off following his late goal for Man Utd against Liverpool
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"But still, the belief in the team, coming back from bad moments has always been there, even more this season because we had a lot of ups and downs.
"This is a game you win or lose – you're in or out. It's a different competition."
Amad himself, meanwhile, admitted he forgot about his first yellow when he whipped off his shirt.
And the 21-year-old also revealed he was congratulated by team-mates in the dressing room following his decisive winner.
"I forgot the first yellow," Amad confessed.
Bruno Fernandes celebrates with his Man Utd team-mates after their dramatic win over Liverpool
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"I'm very disappointed for that, a red card, but the most important thing for me is to win, and against a big team like Liverpool is a big, big moment for me.
"Everyone came to me and said congratulations. I want to thank everyone, the fans were superb all game.
"What a game. I think we deserved this win. We played very good, one of the best games of the season also."
