The Italian also sees Barcelona as favourites.
"Barcelona are one of the favourites to win the Champions League and have everything it takes to achieve it," Capello told Mundo Deportivo.
“I like them under Ernesto Valverde, as they play with fewer sideways passes and more vertical movements. I get less bored watching them now. However, remember the strongest team doesn't always win the trophy.
“With the arrival of Cristiano Ronaldo, Juventus have also become one of the favourites. There has been an overall improvement in their mentality and you can see how much they really want to win this.
“At the start of the season, I had chosen Manchester City to take the Champions League, but I didn't like their performance in the defeat to Tottenham. They look really tired."