Struggling Serie A giants AC Milan sacked coach Massimiliano Allegri on Monday, a day after a 4-3 league defeat to league newcomers Sassuolo.
Milan are 11th in Serie A, 30 points behind leaders Juventus and 20 behind Napoli who occupy the third and last qualifying spot for the UEFA Champions League.
A statement on www.acmilan.it said: "AC Milan announces that it has dismissed as coach of the first team, with immediate effect, Mr. Massimiliano Allegri and his staff.
"AC Milan would like to thank Mr. Allegri and his staff for the work done and wishes them the best professional success. The team will be run on a caretaker basis by Mr. Mauro Tassotti."
For the second successive season Allegri's side has struggled to keep pace on the domestic front as Juventus, Roma and Napoli lay early claim to Serie A's three allocated places in the Champions League.
Allegri took over Milan in time for the 2010/11 season and won the title in his first season in charge.
Milan finished runners-up the following season but Allegri saw his side decimated as a host of key players, among whom Zlatan Ibrahimovic, Thiago Silva and Clarence Seedorf, all left the club.
Milan bought Mario Balotelli from Manchester City on a four-year deal last January in a bid to boost their forward line and scraped to a third-place finish at the end of the season.
Galliani, credited with bringing in major signings that steered the club to huge success over the past two-and-a-half decades, pulled off another coup in signing Ricardo Kaka from Real Madrid on a free transfer in time for this season.
However, under Allegri Milan have failed to gel as a team and began this season, like last, failing to play to their full potential.
Allegri stated two weeks ago this season would be his last at the helm of the San Siro giants but Sunday's reverse sealed his departure earlier than expected.