Overview

• The 19-year-old becomes Nürnberg’s 14th incoming player of the summer window.
• Sporting director Joti Chatzialexiou highlighted his long-range threat and physicality from English youth leagues.
• Mustapha has 17 goals and 18 assists in 60 matches for Crystal Palace’s U18 and U21 sides but no Premier League appearances.
• The Sierra Leone international will join training immediately as the club seeks to revive its 2. Bundesliga campaign.
• Nürnberg are the league’s only team without a point after three matchdays, underscoring the urgency of the move.