Despite the competition for places in attacking areas at City, Grealish believes that he can thrive and justify his £100 million price tag.
Speaking on Monday during his unveiling, Grealish said "I spoke to John Terry at Villa and he said when you're standing there and hear the anthem [Champions League] playing, there's nothing better.
"I can't wait to be doing that.
"It's been difficult, the Tuesday, Wednesday nights watching the [Champions League] games.
"I believe I can play in these games and there's nothing better than watching those games.
"I remember watching City v PSG last year and the standard was outrageous. To be involved would be a dream come true and something I am desperate to do."