Fiorentina has announced that manager Gennaro Gattuso has stepped down just 23 days after joining as manager, with the decision to disagree over transfer strategies, sources have told ESPN.
La Viola announced Gattuso's appointment on 25 May - just two days after his departure from Napoli following the culmination of the 2020-21 Serie A campaign.
"ACF Fiorentina and Mr Rino Gattuso have mutually decided not to comply with previous agreements and therefore not to start the next football season together," Fiorentina said in a statement.
"The company is ready to work immediately to identify a technical alternative that will guide the Viola team toward the results that Fiorentina and the City of Florence deserve."
Sources have told ESPN that Fiorentina is unhappy with the "unacceptable situation" in relation to Gattuso's agent, Jorge Mendes.
FC Porto midfielder Sergio Oliveira and Valencia winger Goncalo Guedes, Mendes' client, were summer targets for Fiorentana.
Gattuso's departure leaves Fiorentina's U.S. Owner Rocco B. The pressure has mounted on Comiso, who has seen five managerial changes in just two seasons, having finished 10th and 13th.
Comiso stuck with Vincenzo Montella when he bought the club in June 2019 before being sacked in December of that year and was replaced by Beppe Ichini, which lasted until November 2020.
Fiorentina then turned to former manager Cesare Prandelli, who resigned in March 2021, citing the "darkness inside", and Ichini was reappointed to oversee the campaign.
Gattuso began his managerial career in 2013 with Swiss side Sion and, after stints in Greece and the Italian lower leagues, was appointed Milan boss in 2017 before taking over at Napoli in 2019.