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Ronaldo was by no means a constant nuisance to the Torino defence, but the Portugal great turned it on when he needed to, setting up Juan Cuadrado before scoring a brilliant goal of his own on Sunday (AEST).

Juve made a lightning start and opened the scoring through a fine Paulo Dybala effort, before Ronaldo teed up Cuadrado – who set up the opener – for the second at Allianz Stadium.

An Andrea Belotti penalty gave the visitors a lifeline just before half-time, Gianluigi Buffon beaten in his record 648th Serie A appearance.

But Ronaldo struck with a wonderful free-kick in the 61st minute and Koffi Djidji's own goal added to Torino's misery as Juve put further pressure on second-placed Lazio ahead of its clash with AC Milan.

It took Juve just three minutes to take charge of the encounter, as Cuadrado found Dybala in the box and the Argentinian's quick feet saw him weave past two defenders before slotting home.

Cuadrado was involved again just before the half-hour mark, this time jinking on to his right foot and finishing emphatically after Ronaldo led a counter and set the winger up.

But Torino pulled one back on the stroke of half-time, Belotti slotting a penalty past Buffon after Matthijs de Ligt blocked Simone Verdi's initial shot with his arm.

Torino briefly thought it had levelled early in the second half, but Belotti had strayed offside in the build-up.

Juve increased its advantage just past the hour-mark, as Ronaldo stepped up to a 30-yard free-kick and sent an unstoppable effort into the top-left corner.

The visitors' haplessness was summed up by Djidji's late own goal, the defender turning Douglas Costa's cross past Salvatore Sirigu.

Juve next visits AC Milan on Wednesday (AEST), while Torino will host Brescia the next day.