Remarkably, the Portuguese superstar is still the Italian giants' top scorer in 2021, despite sealing a return to Manchester United in August and last playing for the Serie A giants back in May.
Ronaldo's last goal for the Old Lady was when he converted the rebound effort after his penalty was excellently saved by Samir Handanovic in a clash with Serie A title rivals Inter Milan.
Inter would ultimately be crowned champions, ending Juventus' run of nine straight titles.
But the giants didn't only lose out on the chance to be champions for 10 years running, they also lost their main man that summer and they just haven't been the same since.
Juve have struggled since Ronaldo's return to the Premier League, with Massimiliano Allegri's men currently seventh in the Serie A table.
CR7 spent three years at Juventus between 2018 and 2021, scoring 101 goals in 134 games where he guided the club to two Serie A titles, two Supercoppas Italiana and one Coppa Italia.
He managed 36 goals in his final season with the club, with 20 of them coming in 2021 before he departed for Manchester United.
But it seems no one has stepped up to the plate in his stead, with Ronaldo still Juventus' top goalscorer of the calendar year despite not playing a game for them in seven months.
The 36-year-old has also boasted a brilliant record for country, as well as club, this year, continuing his impressive goalscoring at Euro 2021.
Portugal's all-time record goalscorer finished the European Championship as joint top scorer alongside Patrik Schick with five goals.
Ronaldo re-joined Man United in the summer and is already repaying the club's faith in him.
He's carried the Red Devils' during their tough season, which has seen Ole Gunnar Solskjaer lose his job and Ralf Rangnick take over in the hotseat.
His impressive return of 13 goals in 18 appearances includes a number of crucial match-winners for the under-performing Red Devils, while the legend's brace in a 3-2 win over Arsenal was his 800th career goal.