The Mariners open the 2018 campaign March 29th at @safecofield. See the full slate now at Mariners.com/Schedule. American LeagueAmerican League WestBaseballMajor League BaseballMarinersMLBMLB American LeagueMLB American League WestMLB WestSafeco FieldSeattleSeattle MarinersSeattleMarinersWashingtonWest
