Garrett Hartley left Saturday's game in Buffalo after suffering a right hamstring injury in the first quarter and didn't return.
After the game, coach Mike Tomlin told reporters that Hartley will undergo an MRI to determine the extent of the injury. Tomlin said Hartley's availability doesn't "look positive in terms of the opener."
Here's a rundown of other notable injuries from Saturday's games:
- The injuries continue to pile up for the Packers. Randall Cobbsuffered a minor shoulder injury against the Eagles, the Packers announced. However, Cobb's teammates believe the injury is minor, likely just a sprain, sources informed of the wideout's condition told NFL Media Insider Ian Rapoport. It's not a broken collarbone, Rapoport reported.
- Bengals quarterback Andy Dalton left Saturday's game with a neck injury and didn't return, according to the team. Trainers checked him out on the sidelines after his 1-yard touchdown run on the team's first drive. After the game, coach Marvin Lewis said Dalton was "fine" and that taking him out of the game was simply a precautionary move, ESPN reported.
- Eagles starting offensive lineman Lane Johnson suffered a sprained left MCL during a failed two-point conversion attempt against the Packers in the first quarter, according to NJ.com. Chip Kelly said after the game that linebacker Kiko Alonso was held out due to a nagging leg injury, according to phillymag.com.