SV Werder Bremen's 18-year-old centre-back, Karim Coulibaly, is being monitored by Manchester United, while it is reported that FC Chelsea has the most definite interest. Real Madrid, Newcastle United, SSC Neapel, and Paris St. Germain also have an interest in the German U21 international, for whom a summer transfer is considered fully planned. Werder Bremen is said to be demanding a fee of up to 50 million euros for Coulibaly, whose contract runs until June 2029.