Garcia describes the current English champions as a "beast" of a club.
He said, "It is a beast. The English league is the most difficult. Staying up there for so many years is a true achievement.
"What strikes me most is Pep Guardiola's ability to change, to invent. Tactical changes, players changed from their natural position. I always want to sit down and watch their games."
The Betis midfielder played two seasons at City and won two titles in 2014 with Manuel Pellegrini.
"If I think about my time at City, the first thing that comes to mind is the Premier we won."