Rob Edwards’ side are on a 14-match unbeaten run ahead of Saturday’s first leg at the Stadium of Light and have the second best defensive record in the second tier.
Edwards has regularly set his side up in a 3-5-2 formation, like former Luton boss Nathan Jones, and guided the club to a second successive top-six finish.
Here’s how Luton could line up against Sunderland at the Stadium of Light:
5. CM: Marvelous Nakamba
Another January loan signing who has been instrumental for the Hatters. Edwards recently described the Aston Villa loanee as his 'favourite player in world football.' Photo: Getty Images
6. CM: Pelly-Ruddock Mpanzu
The 29-year-old missed March’s 1-1 draw against Sunderland due to an injury but has been a key part of the club’s midfield during their rise from League Two to the Championship. Photo: Alex Pantling
7. CM: Allan Campbell -
After a spell in and out of the side at the start of the year, the 24-year-old has started 11 of the side’s last 12 league games. Photo: Getty Images
8. LWB: Alfie Doughty
Luton’s left wing-back, 23, opened the scoring against Sunderland when the sides last met at the Stadium of Light. Photo: Tony Marshall