The Citizens are set to take on the Milan-based team in their first game of the new expanded group stages.
While Guardiola admits the structure does leave more room for error, he does not want his team to take their foot off the gas in any game.
“We (look to) win our first game and then the second one and see what happens,” Guardiola declared.
“In the last games, (we will) take a look. Like in the Premier League we will look at the table in the future.
“Win the first games and then we will see.
“If we are lucky to play in the future, we will know what we need to know.
“Our games at home, we have to try to win otherwise anything can happen.
“(On playing extra games) I don’t think much about what happens in January or February. Many things can happen.
“I’m focused on trying to win tomorrow, and for the rest of the days (on Sunday against) Arsenal.
“In modern football you have to handle the present and that’s all.”