The Minnesota Twins’ Joe Mauer, 2009 American League M-V-P, is expected to officially announce his retirement from baseball on Sunday in a full-page ad in the Star Tribune. Mauer says in his farewell letter “Dear Twins Territory” that “the decision came down to my health and my family. The risk of concussion is always there, and I was reminded of that this season after missing over 30 games as a result of diving for a foul ball.” Addressing the team and Minnesota Twins fans, Mauer says, “Because of you I can leave the game I love with a full and grateful heart.”