The Angels placed Rodriguez on the 15-day injured list Monday due to right shoulder inflammation.
Manager Kurt Suzuki had previously been referring to Rodriguez's injury as being a bout with "dead arm," but the Angels are officially listing him with a shoulder issue. In any case, Suzuki has remained adamant that Rodriguez isn't contending with anything too serious, so the right-hander could be ready to return from the IL around when he's first eligible for activation. Ryan Johnson will fill the open spot in Los Angeles' rotation until Rodriguez is healthy.