The Reds transferred Wynns (shoulder) to the 60-day injured list Friday.
The move doesn't officially end Wynns' season, though the catcher won't be eligible for reinstatement until Sept. 27 -- two days before the Reds' regular-season finale. Wynns sustained a right teres major strain in late July and has been on the shelf since. Luke Maile should continue to work behind Tyler Stephenson at catcher for Cincinnati.