Nottingham Forest has been searching for a new head coach and has been in talks with several candidates. The club was also in talks with Sean Dyche, another experienced manager.
Mancini, who led Manchester City to their first Premier League title in 2011-12, has been out of work since leaving his role as head coach of the Saudi Arabia national team in October.
Unfortunately, the club and Mancini were unable to reach an agreement, and he will not be taking over as head coach at Nottingham Forest.
The search for a new head coach continues, with Nottingham Forest looking to find the right candidate to lead the team forward.