The Italian launched his attack after their FA Cup win over Leeds United.
Mancini seethed: “Someone said for six months that Manchester City would change their manager and Guardiola would come in.
“After Guardiola went to Bayern Munich another manager [is being linked]. They don’t have a very good memory, because in the last 15 months I’m the best manager in England because I’ve one Premier League, one FA Cup and one Charity Shield.
“There is not another manager like me and I understand I can do nothing [about the rumours] but this is the reality.”