New Nottingham Forest defender Moussa Niakhate believes his move to the City Ground was the 'next step' in his career.
The centre-back put pen to paper on a three-year contract with the option of a further 12 months, after signing from Mainz.
Niakhate became the club's fourth incoming of the summer transfer window, after Taiwo Awoniyi, Giulian Biancone and Dean Henderson.