Lazio joined a host of other teams which had slipped up on Sunday when it suffered its first Italian League defeat of the season as Marco Boriello gave a gutsy Genoa side a 1-0 win at the Olympic Stadium.
Juventus, which won the league ahead of AC Milan last season, is now the only team to have a 100 per cent record.
Earlier, Napoli’s three-match winning run came to an end when it was held at Catania, a fate also suffered by Sampdoria which was held to a 1-1 home draw by Torino.
Juventus’s bid to defend its title was also reinforced after both Milan clubs suffered defeat on Sunday. Inter remained in sixth place but is now six points off the pace after a stunning 2-0 defeat at the San Siro to bottom of the table Siena.
Simone Vergassola silenced the home fans with a 73rd minute opener and Francesco Valiani came off the bench to inflict further damage with a goal on the stroke of full-time.
Inter’s second defeat at home, following a 3-1 reverse to Roma, is likely to prompt suggestions there is a curse at the San Siro: so far this season, neither Inter nor AC Milan has won there. By far the biggest shock of the weekend was AC Milan’s 2-1 away defeat to Udinese, a third league reverse which leaves the seven-time European champion 15th.
Despite Italy under-21 international Stephan El Sharaway levelling Swedish striker Mathias Ranegie’s 40th minute opener 10 minutes after the restart, the visitor endured a catastrophic end to the match.
Milan’s Colombian defender Cristian Zapata was sent off, allowing Antonio di Natale to score Udinese’s second from the spot. The visitor’s hopes of levelling suffered a blow seven minutes from time when it was reduced to nine players after Kevin Prince Boateng was red-carded.
The results:Italian League: Sampdoria 1 (Pozzi 84-pen) drew with Torino 1 (Bianchi 69-pen); Udinese 2 (Ranegie 40, di Natale 68-pen) bt AC Milan 1 (El Shaarawy 54); Catania 0 drew with Napoli 0; Atalanta 1 (Raimondi 88) bt Palermo 0; Bologna 1 (Gilardino 9) drew with Pescara 1 (Quintero 41); Inter Milan 0 lost to Siena 2 (Vergassola 72, Valiani 90+2); Lazio 0 lost to Genoa 1 (Borriello 79); Cagliari vs Roma (postponed).
Spanish League: Real Mallorca 2 (Victor 8, Arizmendi 55) bt Valencia 0; Levante 2 (Barkero 70-pen, Martins 86) bt Real Sociedad 1 (Zurutuza 23); Atletico Madrid 2 (Godin 31, Falcao 45-pen) bt Valladolid 1 (Bueno 55); Athletic Bilbao 0 drew with Malaga 0.
