Arsenal loanee Krystian Bielik has impressed on loan at Charlton this season.
Ahead of next Sunday's big clash, we've created a combined XI of Sunderland and Charlton players who could feature in the final. Scroll down and flick through our gallery to see if you agree with our side:
The Black Cats stopper showed his worth in the second leg of Sunderland's semi-final against Portsmouth. Since his arrival from Hearts last summer, McLaughlin has been a calming influence between the sticks all campaign.
O'Nien has barely put a foot wrong since switching to right-back midway through the campaign. His energy and commitment have been key assets for the Wearsiders.
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Charlton recorded the second best defensive record in League One this season, with Sarr playing a big part. His strength, ability on the ball and aerial presence have helped the Addicks keep 18 clean sheets in the league this term.
The Arsenal loanee, 21, has excelled both at centre-half and in a holding midfield role this season. At 6 ft 2 the Pole is a big threat from set-plays while he's also comfortable in possession.
Oviedo's quality has never been in doubt and his return to form has come at just the right time for Sunderland. After starting six of the Black Cats' last seven league games, Oviedo also impressed in both games against Pompey.
The tough-tackling midfielder showed his experience to guide Sunderland through the semi-final tie against Portsmouth. Cattermole has also added goals to his game this term, scoring seven times in League One.
Despite suffering a dislocated shoulder midway through the season, the West Ham loanee, 23, has impressed Charlton fans with his all-action game. Cullen's performances saw him come third in Charlton's player of the year award.
A former Champions League starter, McGeady has looked head and shoulders above League One at times this season. Sunderland can only hope he recovers from a troublesome foot injury before the final.
Aribo, 22, is out of contract this summer, with Arsenal and Manchester City reportedly interested. The exciting youngster can play anywhere in midfield and has chipped in with nine league goals and five assists this team.
Maguire's stunning strike at the Stadium of Light proved the difference against Portsmouth in the semi-final. The 30-year-old has been missed in the second half of the campaign after fracturing his fibula in February.
Only Luton's James Collins (25) scored more goals than the Charlton forward in League One this season. Taylor has also been in red-hot form recently, netting 10 goals in his last 12 starts.