The Reds have agreed on a deal with Stuttgart to sign the 24-year-old for £12.75 million.
Now, Mangala is merely awaiting confirmation from his current club that he can board a flight to England.
The former Hamburg player has spent three years with Stuttgart and Forest are once again raiding the Bundesliga.
Taiwo Awoniyi has signed from Union Berlin and Moussa Niakhate arrived from Mainz earlier this summer.
With George Syrianos, formerly of Stuttgart, overseeing overseas recruitment it’s no surprise to see Germany targeted.
Interestingly, this will be the second time he’s landed Mangala. He was in place at Stuttgart when they decided to sign him in 2019.
Now, he’s set to bring him to Forest and further strengthen the team’s midfield ranks.
Mangala is a progressive midfield player and he will bolster a squad that does look somewhat short.
Ryan Yates is injured, with Lewis O’Brien, Jack Colback and Cafu also in place at the City Ground.
The Stuttgart man is useful in possession of the ball and is capable of dribbling or passing extremely well.
Forest would complete signing number 12 if they can get Mangala over the line in the near future.
Forest to give Mangala a four-year deal
The Reds look set to be completing a real coup by signing Mangala.
He has been courted by other clubs with Manchester United and West Ham both linked recently.
Syrianos will have orchestrated this deal and it’s a signing that ticks a lot of boxes from a Forest perspective.
He is young, would retain bags of sell-on value and ultimately he’s supremely talented.
Forest handing Mangala a four-year deal could prove to be a masterstroke.
He’s set to enjoy his best years in the future and Forest look to be landing him ahead of his prime.
With O’Brien now through the door and Yates one of the team’s better players last year, it will be interesting to see what part Mangala plays.