The former Manchester United star made his injury comeback in the win over FC Zurich on Wednesday.
“It’s good to be back, 55 days after my injury,” Ronaldo told Sky Sports. “It was very disappointing, but this is football.
“My motivation is high and I want to be back again and as strong as I was before.”
“We are top of the league and if we win we have a four-point gap,” he added on their clash with Barca.
“It’s going to be interesting. We are confident at the moment.”