The extrovert striker was part of City's 2011 FA Cup winning team and has kept in close contact with his former team-mates following a £19.5million move to AC Milan in January.
Balotelli told The Sun: "Manchester City will always be in my heart, nothing can change that. Last time they were in The FA Cup final I was there as a player and won man of the match. This time in spirit, I am there as a fan.
"I have texted my old team-mates telling them to make sure that they bring The FA Cup home again. I will be watching the final at home in Milan. The Manchester City fans are the best in England and tomorrow I am one of them.
"I will watch it in my house in peace. I will not even have my phone on, I want to be able to really focus on the game.
"I hope it is the same result of two years ago for City. But it won't be as exciting because of course there is no Mario."