Dan Haren is a former pro baseball pitcher. He played in MLB for the Cardinals, Athletics, Diamondbacks, Angels, Nationals, Dodgers, Marlins, and Cubs. Haren is one of a small number of MLB pitchers to have beaten all 30 MLB teams. Although he was never a particularly well-known player, he finished his career with three All Star game appearances and the seventh best strikeout-to-walk ratio in major league history. Dan Haren has hand signed this Rawlings Official Major League OML Baseball (Selig) Bold Blue Pristine Full Sweet Spot Signature with #15 inscription. Athlon Sports Collectibles Certificate of Authenticity. Image of actual item in stock - as shown