Nottingham Forest are to appoint former Middlesbrough manager Aitor Karanka as their new boss.
Karanka will replace Mark Warburton, who was sacked on 31 December after nine months in charge with the Reds 14th in the Championship table.
The 44-year-old Spaniard has been out of work since being dismissed by Boro in March.
Karanka spent three and a half years on Teesside, earning promotion to the Premier League in the 2015-16 season.
But he was sacked with the club in the relegation zone following a run of 10 games without a win.
The former Real Madrid assistant had reportedly been close to leaving the club in March 2016 following a training-ground row, with similar reports preceding his eventual departure 12 months later.
He helped Middlesbrough avoid relegation in his first season at the club, having taken over with them 16th in the table, before leading them back to the Premier League after a seven-year absence in the following campaign.
His first game as Reds boss will be against promotion-chasing Aston Villa at the City Ground on 13 January.