Ronaldo gave the home side the lead deep into stoppage time in the first half, while Federico Bernardeschi doubled it on 67 minutes.
What was Ronaldo's overall display like?
📷 Match Snapshot
For the opening 45 minutes or so, Juve and Ronaldo were fairly quiet, as although they dominated the ball as they tend to do, Sampdoria weren't exactly troubled by a barrage of chances in front of their goal.
In the end, the champions had to provide a superb moment of ingenuity to break the deadlock.
⚽ ⏱️ 47' Miralem Pjanic stands over a free kick on the edge of the box. Everyone in the stadium thinks he is going to clip a cross to the back post, but he ends up reversing a low ball to the edge of the area for Ronaldo, who had previously spun behind the crowd into space. This allowed him to lash a fantastic first-time finish into the bottom right corner.
Around the hour mark, Adrien Rabiot led a quick move forward before eventually passing square to Ronaldo, who ignored the pleas of Gonzalo Higuain for a pass before drilling a strike to the right corner. On this occasion, the goalkeeper was equal to it.
Seven minutes later, the home side doubled their lead to seal the Serie A title.
Even though he won't be given a goal or assist, Ronaldo was heavily involved as it was his curled effort on goal which was saved by the keeper, only for Bernardeschi to pounce on the rebound to find the back of the net.
Earlier in the day, Ciro Immobile scored a hat-trick to put him four clear of Ronaldo in the Capocannoniere race, which meant the former Real Madrid man was even hungrier than usual for goals.
He had a golden opportunity to close the gap even further a minute from time after Juventus were given a penalty. However, surprisingly, he failed to take advantage as he smashed his attempt off the bar.
CR7 gained a 7.2 FC Rating for his performance against Sampdoria, with him being penalised for the penalty miss.
Prior to that his performance was pretty effective, as as well as his goal, he completed 17 passes into the final third, as well as enjoying 10 touches inside the opposition penalty area which was the third-most of any player in the league this week.
〽️ Rating Week-on-Week
Four days ago Juve were defeated 2-1 by Udinese, with Ronaldo putting in a below-average performance, by his standards, to earn a 6.2 FC Rating.
His goal in the championship-winning match for Juve bumped him up to the aforementioned 7.2 FC Rating.
🗝️ Key Stats
Ronaldo match stats
|Touches In Box||10||Joint Rank #1|
|Final Third Passes||17|
This presents a quandary for the player and for Maurizio Sarri, as Ronaldo will still be desperate for that golden boot. He'll probably play, but an injury to him could spell disaster in Europe.