Leonys Martin out 7 to 10 days (back)

Rangers outfield prospect Leonys Martin has been placed on the minor-league disabled list with what the club describes as a "slight herniated disc" in his back.

Martin, playing at Double-A Frisco, is expected to be out 7 to 10 days before returning to baseball activities.

Martin was hitting .357 (30-for-84) with three homers, 18 RBIs and eight stolen bases (he's been caught seven times). He also has six doubles and two triples and a 1.028 OPS.