Poyer (thumb) was a full participant in Thursday's practice session, Travis Wingfield of the Dolphins' official site reports.
Poyer had been dealing with a fractured right thumb for most of training camp. He was limited to individual drills Wednesday, but he has now progressed to team drills and should be good to go for Sunday's regular-season opener against the Jaguars. Poyer signed a one-year deal with the Dolphins in March after spending the last seven seasons with the Bills, and the 2013 seventh-round pick is slated to start at strong safety alongside free safety Jevon Holland.