He is a Polish national player .
Kacper played at all age levels -- cadet ( U-16 ) , juniors ( U-18 World Cup participant in 2003 , European champion 2003 ) and youth ( U-20 European championship participant 2004 ) .
Kacper is a Polish national Kacper .
Kacper played at all age levels -- cadet ( U-16 ) , juniors ( U-18 World Cup participant in 2003 , European champion 2003 ) and youth ( U-20 European championship participant 2004 ) .