Derby County are set for a busy summer in the transfer market and every position will be under scrutiny as Gary Rowett bids to stamp his mark on the squad, not least the midfield.
The former Middlesbrough boss is being linked with a job at Sunderland.
England's captain and players from Middlesbrough, Newcastle United and Rangers all feature.
The boyhood Sunderland fan has barely featured for Middlesbrough this season.
The 31-year-old looks to be on his way out of Middlesbrough four years after Nottingham Forest attempted to prise him away.
Top scorer Cristhian Stuani is among those who are back in contention ahead of the trip to the Etihad.
Grant Leadbitter's absence has been keenly felt at the Riverside this season, so its no surprise Karanka is so pleased by his availability.
Middlesbrough manager Aitor Karanka has stated that midfielder Grant Leadbitter could be close to a return.
The club have also confirmed that Husband and Ayala are set to be sidelined.
Karanka's men can go back to the top of the Championship table with a victory over Leeds.