Dortmund lost Jamie Gittens to Chelsea earlier this summer, and they have shortlisted Buonanotte as a potential replacement. Buonanotte was on loan at Leicester City last season and faces strong competition for a place in the Brighton squad.
Brighton's manager, Fabian Hurzeler, has mentioned that Buonanotte showed promise in training and games. However, the situation is still developing.
If Chelsea is willing to sell Chukwuemeka for €25M, Dortmund might not pursue Buonanotte. The Chelsea midfielder had a successful loan spell at Dortmund, scoring one goal in 17 appearances. With new signing Jobe Bellingham, Chukwuemeka could be a strong force in the German first division.