Player performance Kacper Kostorz (Kostorz) is a forward ( striker ) player born 21-Aug-99 in Poland. In the last 30 days Kostorz played 438 minutes in 5 games of 5 in this period, all of them in starting lineup. Received no cards. Scored 4 goals Kostorz list of appearances, cards and goals Polish First League 2018/2019 jersey #21