Lions RB David Montgomery to miss some time with rib cartilage injury, rookie Jahmyr Gibbs eyes Week 7 return | CBS Sports Headlines Lions RB David Montgomery to miss some time with rib cartilage injury, rookie Jahmyr Gibbs eyes Week 7 return Montgomery left late in the first half against … Continue reading Lions RB David Montgomery to miss some time with rib cartilage injury, rookie Jahmyr Gibbs eyes Week 7 return