Sunderland v Millwall preview
The live Sky Sports 1 showdown pits two of the First Division's form teams against each other with Mick McCarthy facing his former club.
"We will treat it no differently from an ordinary match," said the Black Cats boss.
"We have just got to go out there and do ourselves justice."
Lions player-manager Dennis Wise has plenty of FA Cup experience to call upon after lifting the famous trophy three times during his days at Wimbledon and Chelsea.
"We may not ever have a chance like this again," he admitted.
"It only comes round once in a blue moon and you have got to take it."
Nick Chadwick should lead Millwall's attack, even though he will not be available for the final if the South Londoners progress because his loan spell from Everton expires before the big day in Cardiff. The Goodison goal-grabber is competing with Neil Harris and former Sunderland striker Danny Dichio for a place.
Andy Marshall, another loanee after arriving from Ipswich Town, starts in goal with Tony Warner sidelined with a knee injury.
Paul Ifill pressed home his claims with a goal against Walsall last weekend while David Livermore is hoping to overcome a knock sustained in training.
Sunderland boss McCarthy delivered a positive bulletin on his injured players this week although Jeff Whitley is definitely ruled out through suspension and striker Darren Byfield is cup-tied.
Stephen Wright returned to training despite hurting his ankle against Gillingham and Kevin Kyle has been well looked after following a bout of gastroenteritis.
John Oster is also winning his fitness battle despite pulling out of the Wales squad due to a hamstring strain.
Wright is probably the biggest doubt of the three but he will be desperate to compete in Sunday's big game.