He was coach of Finland 's Under - 18 side before returning to club management .
Wiss revealed he never had Otso in his age group , but he 's well aware of the youngster 's ability .
Although he was coach of Finland 's Under - 18 side before returning to club management , Wiss revealed he never had Otso in his age group , but he 's well aware of the youngster 's ability .