The Serie A giants are currently two points behind Bayern in Group A ahead of their meeting in the Italian capital, and Garcia admits that he is excited to battle against Pep Guardiola and the Bundesliga champions.
"Bayern are very strong and I really can't wait to play this game, as the Stadio Olimpico atmosphere will be fantastic," the Frenchman told Sky Sport Italia.
"I was one of those who knew Pep Guardiola hadn't chosen an easy challenge at Bayern Munich. He has done and will continue to do very well there.
"I heard people say the coach isn't what makes Barcelona play well but instead Guardiola is proving he makes his teams play well."
Roma warmed up for the visit of Bayern by beating Chievo 3-0 in Serie A on Saturday evening.