Chelsea aren't panicking after seeing Issa Kallon commit to a pro deal at Vitesse Arnhem.

Kallon is regarded the best talent to come through at Vitesse in modern times and was wanted by Chelsea and Tottenham.

But the teen has penned a new two-and-a-half year deal with Vitesse.

While disappointed not to lock down Kallon, Chelsea are likely to have first option on the youngster in the future thanks to their close relationship with Vitesse.