A couple of Miami relievers on the disabled list are starting up their preliminary throwing programs.
Reliever Mike Dunn, who opened the season with a left forearm strain, will begin playing catch on Thursday.
Edwin Jackson, who went on the DL on April 19 with a right triceps strain, threw for the first time on Sunday.
Manager Don Mattingly said both pitchers are in the preliminary stages of throwing.
Joe Frisaro has covered the Marlins for MLB.com since 2002. He writes a blog, called The Fish Pond. Follow him on Twitter @JoeFrisaro and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.