Fiorentina promoted team manager Vincenzo Guerini to the role of head coach on Thursday after sacking Delio Rossi for punching his own player during a match.
Rossi, usually one of the calmest coaches in the histrionic Italian league, lost his cool when substituting Serbian midfielder Adem Ljajic in the first half of the 2-2 home draw with relegated Novara on Wednesday.
"The first team squad for the last two games of the season has been entrusted to Vincenzo Guerini," the not yet safe Serie A side said in a statement, referring to Rossi's actions as a "very serious episode".
"Fiorentina also announce we have started disciplinary proceedings against Adem Ljajic."
Guerini, whose administrative role as team manager would have included organising kits and buses, has been a head coach before with a myriad of clubs including Napoli and Catania.
Fiorentina travel to third-bottom Lecce on Saturday needing a point to secure safety after a woeful season for one of Italy's most recognisable clubs.
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