Chop Robinson is back for Dolphins. He was taken off the field on a cart during the first joint practice with the Lions. Mike McDaniel said it was a rib injury.

Dolphins linebacker Chop Robinson was carted off the field with an undisclosed injury during Miami's joint practice with the Lions.

Robinson did not accompany teammates on a bus back to the team hotel. He instead was transported by car to an unidentified location. A source said it’s not a head injury. Robins

The Dolphins' projected 53-man roster includes rookies Kenneth Grant and Jonah Savaiinaea as potential starters. The Dolphins tied their preseason opener against the Chicago Bears 24-24. Quarterback Quinn Ewers' roster spot is uncertain and may depend on his preseason performance.

The second leg of an 11-day road trip for the Miami Dolphins began Wednesday with the first of two joint practices against the Detroit Lions.