Catania scored in the opening 80 seconds and took advantage of a silly Parma red card to secure victory.
Chievo snatched victory on new Coach Eugenio Corini’s debut thanks to a late howler from Sampdoria goalkeeper Sergio Romero.
Fiorentina dominated this match and wasted numerous chances, but still scraped a 1-0 win over Bologna thanks to Stevan Jovetic’s cheeky flick.
Genoa fought back to hold Palermo in an entertaining 1-1 draw on Gian Piero Gasperini’s return to Marassi.
Gritty 10-man Inter won an extremely controversial derby thanks to a Christian Abbiati howler, but Milan were furious at a disallowed goal and penalty appeals.
Napoli squeezed past Udinese with a hard-fought 2-1 victory to stay joint top of the table with Juventus, but it was far from easy.
Miroslav Klose bagged a brace, as Lazio took advantage of disastrous Pescara defending to secure the win in 35 minutes.
Roma dropped stars like Daniele De Rossi and rode their luck as Atalanta wasted chances, but emerged 2-0 winners in a thrilling encounter.
Claudio Marchisio left it late to snatch a 2-1 Juventus victory at Siena after a few scares.
Cagliari marked the debut of new Coach Ivo Pulga with their first win of the season, though Torino were furious.