Mariners roster moves: Brian O’Keefe C, selected from Triple-A Tacoma. Curt Casali, C, placed on paternity list. Phillips Valdez, RHP, DFA'd #SeaUsRise #DrumTogether #SeattleMariners #RootedInOakland #OAKvsSEA #Baseball #MLB #MarinersBaseball #SeattleBaseball #OaklandAthletics