(Seattle, WA)  --  The Seattle Mariners are assured of a series loss, after dropping last night's game to Arizona, 8-4.  Starting pitcher Hisashi Iwakuma got slammed for six runs on ten hits over five-and-two-thirds innings.  Mike Zunino and Nelson Cruz had solo homers for the Mariners.  Seattle will wrap up its three-game series with the Diamondbacks at Safeco Field at 12:40 this afternoon.