What already has been a bad season for the Carolina Panthers might be getting worse.
“It’s really not looking good right now,’’ Rivera said.
Kalil suffered the injury in Sunday’s loss to Seattle.
Geoff Hangartner and Jeff Byers also can play center. But Hangartner missed Sunday’s game with an injury. The Panthers have a bye this week, which will give them a little time to sort out how they will handle the center position.
Rivera said the Panthers might place Kalil on injured reserve, which means they soon could be signing another center.