Internazionale closed to within four points of Serie A pace-setters Juventus with a 2-0 win over Catania courtesy of strikes by Antonio Cassano and Rodrigo Palacio.
Injury-hit Inter were without Wesley Sneijder, Dejan Stankovic and Cristian Chivu, but took the lead through a Cassano header after Sergio Almiron missed a huge chance to open the scoring for the visitors.
The visitors spurned another huge chance when Mariano Izco headed wide, before Palacio wrapped up the points for Inter with a stunning finish late on.
Since clinching the Scudetto as part of their historic treble in 2010, Inter have struggled to hit the same heights domestically. But coach Andrea Stramaccioni has been praised for steadying the ship since taking over in March.
The Nerazzurri started strongly at the San Siro, with Cassano pulling the strings from early on, but the first big chance of the match fell to Catania's Almiron, who darted between Andrea Ranocchia and Walter Samuel but blazed over from 12 yards.
That miss prompted Inter to attack and they took the lead courtesy of Cassano, who was in inspired form. Diego Milito combined with Esteban Cambiasso, who drilled a beautiful cross towards the far post - and Cassano nodded in past Mariano Andujar.
But Inter took their foot off the pedal and allowed Catania several good spells before and after the break - and the visitors wasted another great opening when Izco sent a free header wide at the far post.
Inter created chance after chance in the second half, with Palacio and substitute Ricardo Alvarez each guilty of missing good openings before Ranocchia sent a thumping header against the inside of the post after good work by Cambiasso.
But Inter finally sealed victory with five minutes left to play - and did so in emphatic fashion. Milito clipped a ball to his left to Palacio, who controlled the ball on his chest before firing a wonderful left-footed volley beyond the helpless Andujar.