Brian Dozier casually mentioned today that Ryan Doumit is "not catching anymore" after "talking it over with his family." Aug. concussion.
— Mike Berardino (@MikeBerardino) January 26, 2014
I assume this will not negate the December trade. It was no secret that Doumit had a concussion last August, and no secret that he and the Twins had agreed that he wouldn't catch in September.
The Braves may have traded for him assuming that he would catch for them, but it's difficult to see that they can claim that the Twins hid an injury.