Seattle Mariners: The Mariners are close to trading for an unspecified catcher, Jon Morosi of FOX Sports tweets citing a source. In a later tweet, Morosi also cites sources that say the Mariners and Atlanta Braves have discussed a deal involving A.J. Pierzynski, but he's not the catcher they are close to acquiring. Seattle will likely look for a backstop to work in tandem with 24-year-old Mike Zunino, who has been a large disappointment offensively this season.