The Milan clubs have fallen off the pace and the league now looks to be a two-horse race between leaders Napoli and champions Juventus.
Genoa coach Gian Piero Gasperini has made a stand against the Genoa ultra who had called for him and the club's owner to go.
Napoli are the unofficial 'winter champions in Italy', but Juventus' form suggests they should be regarded as the favourites to retain their title.
A mixed year for Italian football, with bankruptcy and match fixing sharing the headlines with some hugely encouraging performances in Europe.
Only four points separate the top five clubs in what is the most exciting Serie A title race in many years.
A difficult Champions League draw for Juventus will not be welcomed by the Old Lady's Serie A rivals.
The Serie A title race is wide open - a sign of an improving league or possibly a lowering of standards. Paddy Agnew reports.
After their 2-1 victory over Inter there is now no doubt that Napoli are now title challengers.
Roma coach Rudi Garcia says the conditions at Bologna's Stadio Renato Dall'Ara were more suited to water polo than football.
Italy ran out of steam in their friendly match against Belgium, but before then they were more than a match for the world's number one…