Inter moved on to 68 points, ahead of Lazio on goal difference as the sides are level on their head-to-head records. They are eight points behind Juventus with six games to play.
Romelu Lukakuare still five points off the Champions League places after Antonio Candreva's equaliser rescued a solitary point in a 2-2 draw at Torino in a thrilling Serie A clash on Saturday.
Defender Filipe Luis has rejoined Atletico Madrid from Chelsea in a reported 16 million euro ($17.66 million) deal, the Spanish club said.
Olympiakos Piraeus secured a surprise 3-2 victory over last year's Champions League runners-up Atletico Madrid to make a dream start to their Group A campaign on Tuesday.
Argentina's injured captain Lionel Messi has been named in a squad missing the suspended Javier Mascherano and Gonzalo Higuain for next month's World Cup qualifier against South America's bottom side Paraguay.
Carlos Tevez has been included in the squad for the first time in three years for next month's friendlies in England against Croatia and Portugal.
He made it 3-0 with a superb first-time finish into the bottom corner in the 20th minute, scoring his first ever treble in a competitive game, more than 19 years after making his professional debut.
News of all that's transpired on and off the football field
Lionel Messi's penalty earned Argentina a 2-1 win over Croatia after a fortunate equaliser that stood despite an unintentional handball by Sergio Aguero in a friendly at West Ham United's Upton Park ground on Wednesday.