Ronaldinho has backed Pep Guardiola to end his Champions League barren run and win the trophy with City.
"It's a very difficult competition, but he is a very good coach with a great team at his disposal so they can break through at any moment," Ronaldinho told Reuters.
"I don't watch their games in their entirety, usually only highlights, but what I do see of Man City I do always like a lot."
Ronaldinho also said football may have changed since his time but he found it beautiful still.
"Football is always great to watch, whether it's a more tactical passing game or heavily based on individual performance," he said. "It's up to coaches, and each choose differently."