(CNN) -- Serie A leaders Inter Milan suffered a setback in their Italian title defense as they wasted a two-goal lead to be held 2-2 at home by Palermo on Saturday.
Inter Milan coach Jose Mourinho endured an uncomfortable second half at the San Siro.
However, nearest rivals Juventus were beaten 3-2 by Champions League- chasing Genoa in the late kick-off, a result that means Jose Mourinho's side actually extended their lead at the top of the table to 10 points with just seven games remaining.
First half goals from Mario Balotelli and Zlatan Ibrahimovic saw Inter coasting to three points to open an even bigger gap on second-placed Juve before their Sicilian visitors hit back.
Brazilian forward Edison Cavani struck as Palermo pulled one back in the 73rd minute and two minutes later substitute Davide Succi equalized for the visitors.
Despite the setback, events at the Stadio Luigi Ferraris meant that Inter should be certainties to defend their title if they can avoid defeat in the top-of-the table clash at Juventus next weekend.
Genoa went ahead against Claudio Ranieri's side through Thiago Motta in the 29th minute but a controversial penalty from Alessandro Del Piero brought Juve level just before half-time.
Motta restored Genoa's advantage deep into first-half stoppage time before Mauro Camoranesi was shown a red card for Juventus.
Despite this, Vincenzo Iaquinta looked to have earned a draw for the visitors with five minutes to go but Raffaele Palladino earned Genoa all three points in the 88th minute to take them back above Fiorentina into fourth place.
Milan tightened their grip on third place with a 1-0 win at Chievo with Clarence Seedorf scoring the only goal in the 53rd minute.
However, Roma's bid to claim the fourth and final Champions League qualifying spot were dented with a 4-2 defeat to Lazio in a thrilling city derby at the Stadio Olimpico.
Goran Pandev and Mauro Zarate gave Lazio a spectacular start with two superb early goals before Philippe Mexes pulled one back in the 10th minute.
Swiss defender Stephan Lichtsteiner re-established Lazio's two-goal lead ahead of a typically volatile second half as three men were sent off.
Christian Panucci and Mexes were shown red for Roma and Zarate for Lazio.
Daniele De Rossi pulled one back to give Roma late hope but Aleksandar Kolarov scored Lazio's fourth to seal the win.