Robinson left practice on a cart after going down at the end of a play during an 11-on-11 period. It’s unclear what was ailing Robinson, last year’s first-round pick who posted 6.0

After a day that Tua Tagovailoa described as "very frustrating," the Dolphins will practice against the Lions again Thursday.

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.