Buy or sell Mariners Tickets at TicketCityhttp://www.TicketCity.com/mlb-tickets/al/seattle-mariners-tickets/mariners-tickets.htmlSeattle Mariners Tickets, Safeco Field, April 12 TBAhttp://www.TicketCity.com/mlb-tickets/al/seattle-mariners-tickets/seattle-mariners-tickets-safeco-field-april-12-tba.htmlSeattle Mariners Tickets, Safeco Field, April 13 7:10PMhttp://www.TicketCity.com/mlb-tickets/al/seattle-mariners-tickets/seattle-mariners-tickets-safeco-field-april-13-710pm.html