During last night’s game, the Cardinals tweeted that they had outrighted RHP Alvaro Seijas and removed him from the Club Player Pool.
There seems to be some confusion about the actual status of Seijas and what the Cardinals actually did with him. Note that the Cardinals’ tweet did not say that the Cards designated him for assignment. A DFA is a common method clubs use to trim a player from the 40-man roster, because the DFA removes the player from the 40-man roster immediately. But a club does not have to DFA a player if it wants to remove someone.