Here is today's Mariners starting lineup and pitching matchup, in a game most would consider "must-win," as Seattle finishes their series against the DBacks Ford and Castillo photos by bryan_saldana_ Kelly photo by Gregory Shamus #SeaUsRise #ArizonaBorn #SeattleMariners #Baseball #MLB #MarinersBaseball #SeattleBaseball #ArizonaDiamondbacks #MikeFord #LuisCastillo #MerrillKelly #Seattle #ChaseField #Arizona #SeattleSports #CirclingSeattleSports