Inter Milan moved closer to a fifth successive Serie A title after beating bitter city rivals Lazio 2-0 on Sunday.
Inter restored their two-point lead over Roma, who won 2-1 at Parma on Saturday, and stayed on course for a treble.
Inter face Roma in the Italian Cup final on Wednesday and Bayern Munich in Madrid on May 22 in the Champions League final.
Inter face lowly opposition in their last two league games - Chievo (12th place) at home next weekend before a trip to relegated Siena (19th).
Roma also face Chievo a week after welcoming 14th-placed Cagliari.
But Roma could have a 'joker' to play because if the two sides are level on points at the end of the season, the capital city side would be champions thanks to their better head-to-head record against Inter.
Sampdoria, who lead Palermo by two points, at times laboured to a 2-0 success at home to rock-bottom and already relegated Livorno while the Sicilians held on to a 2-1 victory at Siena.
In other games Napoli and Juventus both ensured themselves a place in the Europa League next season.
Napoli won 2-1 away to Chievo thanks to goals from Argentine pair German Dennis and Ezequiel Lavezzi, sandwiching a Pablo Granoche strike.
Juventus dropped to seventh, a point behind Napoli, but secured their spot with a 1-1 draw at Catania due to Genoa's 3-0 defeat at Bari.
Bologna boosted their survival hopes as they came back from a goal down to draw 1-1 at 10-man Atalanta.