Cooper (concussion) was reinstated from the 7-day injured list Friday, Paige Leckie of MLB.com reports.
Cooper played in two rehab games with Single-A Jupiter this week and is now back with the Marlins after briefly being sidelined by a concussion. The 31-year-old should see regular playing time down the stretch for Miami, especially after Jesus Aguilar was designated for assignment Friday to make room for him on the active roster.