Ronaldo scored in the 2-0 win over Leverkusen and back scoring goals despite his early struggles at the start of the season.
Juventus could face Real Madrid in the knockout stages after Los Blancos finished 2nd of the their group behind Paris Saint-Germain.
Ronaldo did enjoy nine remarkable years at Real Madrid before moving to Juventus for a new challenge in the Serie A.
However, Ronaldo who quit Real Madrid in 2018 does not want to face his former club now until the Champions League final.
'Real Madrid are a great team, but I'd not face them later. I would sign up to play them in the final instead,' Ronaldo told Sky Sports.
Ronaldo added: “I feel great, i have passed all the physical problems.
“It was over four weeks of which I was playing with pain but now am fully fine and ready.
“We are doing well, we played really well in the 2nd half vs Leverkusen, we finished top of the group, alot has improved for me also, I feel more confident and I hope to also continue like this.”
