It’s matches like Millwall’s FA Cup tie with Brighton that makes the Lions manager wish he was still playing.

Neil Harris’ side welcome Chris Hughton’s Seagulls to The Den on Sunday in their eleventh quarter-final in their history.

“I do not often miss the games themselves but there are one or two a year that you really feel ‘I would love to be playing today’ - and Sunday is definitely one of those occasions,” said Harris.

“I was very fortunate as a player to play in some big occasions and I love it when I see my players out there on the pitch responding to that atmosphere.

“As coach or a manager it is the best next thing, you are as close as you can be to the white line.

"You are working with the players every day and you have an input.”

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Like Millwall, Brighton won their last away outing at Crystal Palace and Harris was full of praise of his opposite number’s achievement in turning Sunday’s opponents into a bonafide Premier League club, but that said he believes his Lions can tame Hughton’s men.

“Chris [Hughton] has done a brilliant job, hasn’t he?

“Any club that get promoted out of the Championship and then sustain Premier League football, it’s a wonderful job.

“They have put a good set of players together, recruited from all over the world.

“They have just got back to back wins in the Premier League, which is very hard to do. But that goes all out the window for this game.

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“I think [The FA Cup] certainly brings the best the best out of our principles, in the way we play, what the club ethos is and what we stand for.

“Certainly being the underdog helps a lot for us.

“The style of play we have adopted over the years suits cup football to a certain degree.

“Recently, we have had a rich tradition in this competition.

“For what reason? I do not know, it’s crazy how you go through periods in times like that.

“We know the challenge that awaits us, the difficulty of it and the magnitude of it but it one we are certainty going to relish.”