AFP, MILAN: Paulo Dybala scored a hat-trick to extend Juventus' lead at the top of Serie A with a 4-2 win at battling Benevento on Saturday as Fiorentina, inspired after the tragic death of their captain, beat Roma 2-0.

The Turin giants moved a step closer to a seventh straight Italian title, four days before they travel to Real Madrid needing to overturn a 3-0 deficit to reach the Champions League semi-finals.

Juventus now lead second-placed Napoli, who travels to Chievo today, by seven points.

But Roma's third position is under threat as they fell at home to Fiorentina -- whose captain Davide Astori died suddenly last month -- and who claimed a sixth straight win for the first time since the 1959-60 season.

Malian forward Cheick Diabate scored a brace to twice drag Benevento back into the game but the rock-bottom side fell to their 26th defeat in 31 games.

Dybala -- who will miss the trip to Madrid after being red-carded in the first leg -- opened the scoring after quarter of an hour and got the second just before the break for a penalty awarded after consultation with the video assistant referee (VAR).

The 24-year-old completed his treble with a penalty after 74 minutes when Gonzalo Higuain was brought down in the box, before Douglas Costa added the fourth eight minutes from time with a magnificent curling effort.

Benevento were back level five minutes into the second half when Diabate rose higher than defender Medhi Benatia to head home a corner.

Already reeling from their 4-1 Champions League defeat to Barcelona in midweek, Roma's spot in next year's elite European competition is now under threat.

And Fiorentina coach Stefano Pioli credited Astori's spirit with inspiring the side.

Marco Benassi gave the visitors the lead after seven minutes at the Stadio Olimpico, with Giovanni Simeone doubling their advantage five minutes before the break.

Inter Milan can overtake Roma when they visit Torino on Sunday, while Lazio can also move level with their Roman rivals when they travel to Udinese.

Fiorentina are just outside the Europa League places in seventh -- two points ahead of Sampdoria, who were held to a goalless draw against city rivals Genoa, and Atalanta who drew 1-1 at SPAL.