Jon "Sackmaster" Kowalyshen (born April 14, 1985) is a professional American football player who played 6 seasons with the United Indoor Football (UIF), Continental Indoor Football League (CIFL) and the Indoor Football League (IFL).
Jon "Sackmaster" Kowalyshen (born April 14, 1985) is a professional American football player who played 6 seasons with the United Indoor Football (UIF), Continental Indoor Football League (CIFL) and the Indoor Football League (IFL). (en)