City, who have already qualified for the last 16 in Europe, could still win their group if they defeat holders Bayern 3-0 at the Allianz Arena on Tuesday.
But with the Citizens hosting Barclays Premier League leaders Arsenal on Saturday, Pellegrini has indicated he may give some of his players some rest time tonight, and it certainly appears goalkeeper Joe Hart will start the match in place of Costel Pantilimon.
A win on Saturday would put City within three points of Arsenal
Hart, previously City's established number one, was dropped from the team in October after making a string of high-profile errors, which included mistakes in the home loss to Bayern earlier that month.
If he faces them again on Tuesday evening, it will be only his second appearance in the Blues' last 10 games.
It has been a worrying time for the England international building up to next summer's World Cup.
And Pellegrini said of Hart: ''For him it is a very important game. I am not thinking about the past, just thinking about the future. I trust in him.''