Mariners' Dean Kiekhefer: Designated for assignment

Kiekhefer was designated for assignment by the Mariners on Saturday, Ryan Divish of the Seattle Times reports.

Kiekhefer's Mariners tenure didn't last a month, as the team opted to clear his roster spot for one of two pitchers with past track records of major league success in Casey Fien or Mark Rzepczynksi. Kiekhefer's strong minor league numbers should be able to find him a new organization, but he might have to wait a while before a return to the majors.