Rangers midfielder Glen Kamara accused Kudela of racially abusing him during the teams' last-16 tie at Ibrox last month.
Slavia, who won 3-1 on aggregate to advance to the quarter-finals, have denied the claims, instead saying they would file a criminal complaint against Kamara for allegedly attacking Kudela after the game. UEFA and Police Scotland have yet to decide on the case. "We don't expect him to help us at Arsenal," Slavia spokesman Michal Bycek told Czech TV.
Slavia said in a statement Kudela had "a bruised nose" and "high fever". Czech media said Kudela had suffered the injury during the Czech Republic's World Cup qualifier against Wales last week after a challenge by Gareth Bale.
In any case, UEFA have suspended Kudela for this Thursday's match while they carry out an investigation into the alleged racist abuse so he would not have been able to play anyway.