Almost 5,000 fans crammed into the compact "Gaetano Scirea" stadium in Villar Perosa at the foot of the Italian Alps, as supporters descended on the small town in order to catch a glimpse of the superstar attacker in his first appearance since signing for 100 million euros ($117 million, Sh11.7 billion) a month ago.
Emre Can, a summer signing from Liverpool, also appeared in the match which, remarkably, was won by the B team 3-2.
Such was the dominance of the Agnellis over the town that deceased former club chairman Gianni Agnelli was mayor between 1945 and 1980.
"I've been coming here since I was 12 years old back in the 1960s, when (Gianni) Agnelli would arrive here in a helicopter", he said.
Ronaldo formed a front three alongside Dybala and Douglas Costa, a trident that will surely produce plenty more goals as the Serie A season gets underway.
The Portuguese beat an off-side trap as he was came face to face with the goalkeeper, he then took his time to apply the finish in style.
With just a week to go until the Serie A season kicks off, Ronaldo will have wanted to work off the rustiness on the field, and he had the chance to do so against the Juve B-team.
Paulo Dybala scored in the 31st and 40th minutes, and Claudio Marchisio struck in the 53rd minute to round out the scoring for the first team.
As is custom, the game was interrupted in the second half for a pitch invasion and the game ended with Juventus picking up a comfortable win.
Juventus, though, have signed Ronaldo not to cement their domestic dominance, after winning seven straight league titles, but to boost their worldwide profile and bag their first Champions League triumph in over two decades.
That could mean Ronaldo gets even more up close and personal with Juve fans.