Massimiliano Allegri has agreed a new contract at AC Milan until 2014.
Former Cagliari boss Allegri, 44, took charge of Milan in the summer of 2010 and last year led the club to their first Serie A title since 2004.
His current deal was due to expire this summer but, after talks with vice-president Adriano Galliani on Friday afternoon, he has now signed an extension for a further two years.
Meanwhile, midfielders Gennaro Gattuso and Alberto Aquilani have been ruled out for a month.
Gattuso, who has been out with an optical nerve problem, has now picked up an eye infection, while Aquilani has suffered an ankle injury.