The Mariners have selected infielder Patrick Wisdom for their active roster, filling the spot of Rob Refsnyder, who is on the paternity list. To make room on the 40-man roster, right-hander Blas Castaño has been designated for assignment. Wisdom, returning to the majors after a stint in South Korea, has excelled in Triple-A, hitting nine home runs in 15 games. Castaño, who had limited big league experience, is now in DFA limbo, potentially appealing to teams needing pitching depth.
