Some more tough news for the Chicago Bears on Wednesday.NFL insider Ian Rapoport reports that Bears linebacker Khalil Mack will be OUT this weekend against the San Francisco 49ers.Not only is he out this weekend, but the Bears are currently contemplating putting him on IR to give him four weeks of rest with the bye week coming up.Mack has been dealing with a foot issue and has been battling the injury every week since the start of the season and it hasn't improved at all.More details to come.