MILAN, Italy -- Juventus is appealing its demotion to Serie B and the loss of two Serie A titles in Italy's match-fixing scandal.

Juventus filed an appeal late Monday, arguing that the sanctions were excessive, club spokesman Roberto Patriarca said Tuesday.

Lazio, Fiorentina and Milan also confirmed Tuesday they will appeal their punishments. The appeals hearing will begin Saturday, the Italian soccer federation said.

An Italian sports tribunal on Friday relegated Juventus, Lazio and Fiorentina to the second division. AC Milan escaped demotion but was given a 15-point penalty and banned from European play in the upcoming season.

Juventus was handed a 30-point penalty, Fiorentina 12 points and Lazio seven. The sports tribunal also sanctioned 19 former officials and referees for influencing the outcome of matches.

Meanwhile, prosecutor Stefano Palazzi will resubmit his original recommendation for tougher sentencing, the soccer federation confirmed.

Palazzi wants Juventus demoted to Serie C; AC Milan, Fiorentina and Lazio demoted to Serie B with larger points reductions -- three for AC Milan, and 15 each for Lazio and Fiorentina.

Prosecutors in Naples, Rome, Parma and Turin are conducting separate criminal probes into sports fraud, illegal betting and false bookkeeping -- but any indictments could take months.

Fans have been protesting against the punishments. Hundreds of Fiorentina supporters blocked 60 trains carrying 24,000 passengers on Monday, prompting the club to ask fans to behave.