Napoli lost ground in the race for a place in the Champions League as they were held to a 1-1 draw at home by Atalanta.
Veteran striker Luca Toni scored in either half as Verona pulled off a surprise 2-0 win over Napoli on Sunday.
Atalanta survived the sending-off of midfielder Carlos Carmona to earn a valuable point at home to Udinese.
Atalanta goalkeeper Marco Sportiello admits he is enjoying being linked with clubs like Liverpool.
Debt-ridden Parma secured a point from a goalless draw with Atalanta on their overdue return to Serie A action.
Stefano Colantuono has been dismissed by Atalanta after four consecutive Serie A defeats, with Edy Reja named as his replacement.
Napoli missed the chance to move level with second-placed Roma in Serie A as they lost 1-0 at Torino on Sunday.
Sampdoria came from behind to beat Atalanta 2-1 on Sunday for their first win since January 18.
A stunning strike by Andrea Pirlo sent Juventus 10 points clear at the top of Serie A with a 2-1 victory over Atalanta.
Juventus came from behind to open up a 10-point advantage at the top of Serie A thanks to a 2-1 win over Atalanta.
Inter Milan picked up their second win in a row by beating Atalanta 4-1 to keep up their pursuit of a place in Europe.
Roma beat Cagliari 2-1 to snap a four-game winless streak and close the gap on Serie A leaders Juventus to seven points.
Fiorentina's Manuel Pasqual struck a late goal to give Mohamed Salah a winning Serie A debut against Atalanta.
Napoli took advantage of slip-ups by the top five in Serie A with a win at Chievo, thanks to a Manolo Gabbiadini brace.
A spectacular Mauricio Pinilla strike earned Atalanta a late 2-1 win over Cagliari.
Paul Pogba scored a superb goal and created another as Serie A leaders Juventus beat Chievo 2-0 in Turin.
Hellas Verona bounced back from last week's back-to-back defeats against Juventus with a 1-0 win over Atalanta.
Xherdan Shaqiri scored his first goal for Inter Milan in a 2-0 win over nine-man Sampdoria in the Coppa Italia last 16.
Juventus moved five points clear in Serie A with a 4-0 win over Hellas Verona on Sunday, while Sampdoria beat Parma.
Atalanta upset the odds to beat AC Milan 1-0 at the San Siro for what was only their fourth win of the Serie A season.
After five qualifying victories, could England go on to win Euro 2016 in France?