The game, between Juventus A and Juventus B, is played yearly in the town of Villar Perosa outside of Turin.
Admittedly, he was playing against Juve's youth team in a pre-season friendly.
It has become a tradition down the years for fans to storm onto the pitch, marking an end to the match.
Massimo Savelli from near Siena, some 450 kilometres to the south east, got up at 0600 to be in Villar Perosa for the first time in decades of supporting his team.More news: Big-hitters beat up on Bellerive at PGA Championships
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Ronaldo proved good value for the hype, scoring in the 10th minute with a neat finish after breaking a loose offside trap and closing in on goal completely unmarked.
Cristiano Ronaldo has recalled the "unbelievable" standing ovation he received from Juventus fans when he scored that sensational overhead kick in the Champions League quarter final first leg in Turin last season. Ten minutes later, he pressured Riccardo Capellini into an own-goal to make it 2-0 to the Bianconero, the name given to Juventus because of its famed white-and-black jersey.
Ronaldo and Juan Cuadrado were then frustrated in front of goal, but Dybala took advantage of their misses to convert for Juve's fourth on 40 minutes.
The 33-year-old was brought off at half-time, but not before one over-affectionate fan ran on to the pitch and locked him in a hug which required the help of two stewards to get out of.