https://cdnph.upi.com/ph/st/th/9681786642004/2026/upi/aa950e19c1bd946b507a58744cedf0e2/v1.5/Panthers-running-back-Hubbard-week-to-week-with-hamstring-injury.jpg" /> Carolina Panthers running back Chuba Hubbard has "a legit hamstring" injury and is week to week, coach Dave Canales told reporters Thursday.