Borussia Dortmund are happy to have kept hold of defender Nnamdi Collins.

BVB fought off competition from Chelsea and Manchester City to secure Collins to a pro deal last year.

The 17 year-old is regarded as one of the brightest young talents in German football and now has a deal to 2023.

Indeed, such has been his progress that Collins is now training with the senior BVB squad.

However, City and Chelsea haven't dropped their interest, with BVB overstocked for centre-halves and having just agreed a deal with PSG defender Soumaila Coulibaly, 17.

As such, there's a belief Collins may rethink his future in Dortmund if he can't see a smooth pathway to first team football.