David Moyes is in line to become Sunderland’s next manager.
Allardyce was in charge of Wednesday night’s friendly win over Hartlepool but will be confirmed as Roy Hodgson’s Three Lions successor on Thursday.
Sunderland want to move quickly to appoint a replacement for the 61-year-old with the new Premier League season just three weeks away.
Moyes has already been sounded out over the role and the Black Cats’ owner Ellis Short and chief executive Martin Bain are understood to be confident of securing his signature.
The Scot enjoyed 11 successful years at Everton before leaving Goodison Park in 2013 to succeed Sir Alex Ferguson at Manchester United.
He signed a six-year deal at Old Trafford but was sacked after just ten months having failed to lead the club to Champions League qualification.
Moyes went on to take charge of Real Sociedad but left the LaLiga side in November after a year in charge.
Now the 53-year-old is ready to return to the Premier League to rebuild his managerial career – and looks set to do so at Sunderland.