Like their expansion cousins, the Marlins are interested in adding Brad Penny, according to the Miami Herald. The Marlins will face competition, since the Rockies, White Sox, Rays and Rangers are also "thought to have interest" in the power righty. Penny pitched with the Marlins for five years at the beginning of his career, so he's familiar with the organization.
However, Buster Olney suggested this morning that Penny probably assured the Red Sox he wouldn't sign with an AL contender. Otherwise, the Red Sox could have kept him around long enough to prevent him from gaining post-season eligibility with an American League rival.