By Albin Sybera Star Czech footballer and captain of leading side AC Sparta Prague Ladislav Krejci signed a jersey for a fan which had the slogan “Jude Slavie”, an antisemitic chant frequently used by Sparta’s ultras fans, and the number 88, a numeric abbreviation used in neo-Nazi circles for the “Heil Hitler” Nazi salute, which is illegal in Czechia. Sparta’s management backed its captain’s actions following a wave of criticism after a photograph of Krejci signing the antisemitic jersey was circulated online, telling the Czech online website Sport.cz the whole affair needs to be understood in…