Villa credits special guardiola for improving citys sterling

I think there may be a mistake here!

Villa credits Guardiola for improving City's Sterling, but I think you meant to say that Pep Guardiola, the manager of Manchester City, credits his coaching and tactics for improving Raheem Sterling's performance, not Villa (Aston Villa, the football club).

Raheem Sterling has indeed improved significantly under Pep Guardiola's management at Manchester City, and many have credited Guardiola's coaching and tactical approach for Sterling's growth as a player.