Robbie Keane is expected to depart his role as Middlesbrough assistant manager after Jonathan Woodgate was replaced by Neil Warnock as the club's manager.
The Teessiders parted company with the former England international on Tuesday morning three days after a damaging 3-0 home defeat by Swansea.
A club statement said: "MFC can confirm that head coach Jonathan Woodgate has been relieved of his duties with immediate effect.
"Jonathan was relieved of his role on Tuesday morning and will be replaced by the experienced Neil Warnock.
"Warnock will assume responsibility immediately.
"The club would like to place on record its thanks to Jonathan for all his work in the role of head coach."
Keane's position wasn't mentioned in the club statement and it remains to be seen whether Warnock keeps him on his staff, although it is understood that he is likely to depart along with Woodgate. The legendary striker also recently left his position as Ireland assistant after Stephen Kenny took over from Mick McCarthy.
Former Boro defender Woodgate, who was already on the coaching staff at the cub's Rockliffe Park training headquarters, was handed the reins by chairman Steve Gibson in June last year after impressing during the interview process.
Woodgate took charge of 41 games, but won only nine of them and, with eight Championship fixtures remaining, his side sit in 21st place in the table, clear of the bottom three only on goal difference.
The widely-travelled Warnock, whose lengthy managerial career has included spells at Sheffield United, Crystal Palace, QPR and Leeds, has been out of the game since he left Cardiff in November.