Before the game against Sassuolo Ronaldo failed to score in previous league games against Chievo Verona, Lazio, and Parma.
His struggles in front of goal made several pundits, critics question if at 33-years-old Ronaldo was still able to deliver when it mattered.
The forward who moved from has however responded in trademark fashion when it mattered the most for his side this season.
Twitter reacts to Cristiano Ronaldo vs Sassuolo
Ronaldo opted to stay back in training for the international break and did not feature for Portugal in their games against Croatia and Italy.
His hardwork in training paid off as he was difference between for Juventus who came up against a strong Sassuolo defence.
Ronaldo opened the scoring to break the Sassuolo resistance in the 50th minute and was again on target when he converted a ball through to him by Emre Can in the 65th minute.
Twitter users were in awe of the performance of the reigning World Player of the Year, as he dominated the trends, here are reactions to his goals and performance against Juventus.
Popular football pundit Gary Lineker said, "When I said @Cristiano’s goal was the first of many, I didn’t necessarily mean in this game, but he’s just bagged another. A prolific, prodigious professional."
"Ronaldo's second goal for Juventus. Beautiful finish."
"Ronaldo could have had 4 or 5 here. He doesn't want you guys to win this giveaway. What a savage."
"It took Cristiano 4 games and 28 shots to score his first goal in La Liga last season. It’s taken him exactly 4 games and 28 shots again to open his Juventus account in Serie A this season."
"What’s that? Ronaldo scored twice for Juventus?"
"Ronaldo shaking hands with players better than him."
Ronaldo sets record against Sassuolo
The goal also meant that Ronaldo has scored his 400th in league competitions across Europe.
His overall league total includes two for Juventus in the Italian Serie A, three for Sporting Lisbon in the Portuguese Primiera Liga, 311 for Real Madrid in the Spanish La Liga, and 84 for Manchester United in the English Premier League.
He will aim to add to his tally when Juventus take on Valencia in their first group game of the UEFA Champions League on Wednesday, September 19.