Nottingham Forest have signed Belgium midfielder Orel Mangala from Stuttgart for £12.75million.
Forest announced on Sunday the 24-year-old has signed a long-term contract with the Premier League newcomers.
Mangala, who has been capped twice by Belgium, played 29 times for Stuttgart last season as they finished 15th in the Bundesliga.
He becomes Steve Cooper's 12th summer signing as Forest prepare for their top-flight return after a 23-year absence.
Former Manchester United midfielder Jesse Lingard, who arrived on a free transfer, is Forest's most high-profile signing this summer.
They have also brought in goalkeeper Dean Henderson on loan from United and another shot-stopper in Wayne Hennessey from Burnley.
Forward Taiwo Awoniyi joined from Union Berlin and defender Neco Williams joined from Liverpool.
Other arrivals include defenders Moussa Niakhhata, Omar Richards, Giulian Biancone and Harry Toffolo as well as midfielder Lewis O'Brien.
Young goalkeeper Ryan Hammond has also signed as has midfielder Brandon Aguilera, who has joined Guanacasteca on loan.
Forest start their Premier League campaign when they face Newcastle away on Saturday.