Marshall referred to the Lions as the Bears' "annoying little brother" before going on to mock the dire economic state of the city at the moment.
Sims believes that Marshall had no right to bring up the off-field issues being experienced by Detroit, and warned the 29-year-old that he would be there to answer any criticism of the Lions.
"If you want to go after somebody, we standing right here. We ain't running from nobody," Sims told reporters.
"The city and what it's going through, there's no reason to attack that. That's a different situation. A lot of people are hurting off that, so there's no reason for him to come at that."