Dinamo Zagreb coach Zoran Mamic has resigned ahead of the club's Europa League clash with Tottenham Hotspur on Thursday after having a four-and-a-half-year prison sentence for fraud confirmed.

Mamic's brother Zdarvko, Dinamo's former executive director who is at large in neighbouring Bosnia, also had his sentence confirmed by Croatia's Supreme Court, as did former tax official Milan Pernar.

"Although I don't feel guilty, I resign as I said before I would do if the sentence was confirmed," Mamic said in a statement on the Dinamo Zagreb website.

"I wish all the good luck to the club."

A club statement added: "At a session of the Management Board of GNK Dinamo, the resignation of the current head coach and sports director was accepted, and Mr. Damir Krznar was appointed to the position of head coach of the first team, who will also serve as the club's sports director."

A statement published by state broadcaster HRT said: "The Supreme Court has confirmed the Osijek Municipal Court's verdict sentencing Zdravko Mamic to six and a half years of imprisonment for the embezzlement of 116 million kuna (€15.31m from Dinamo football club,"

"Zoran Mamic's sentence has been reduced to four years and eight months from four years and 11 months, while Milan Pernar had his sentence reduced to three years and two months from four years and two months."

The three had been charged with tax evasion worth 12.2m kuna (€1.6m) and for siphoning off 116 million kuna (€15.31m) from transfers of players from Dinamo.

The Croatian champions are at home to Tottenham on Thursday in the return leg of their Europa League round of 16 return leg after the English side won the first leg 2-0 last week.