(Seattle, WA)  --  Felix Hernandez struck out seven over six innings as the Mariners doubled up the Athletics 6-3 at Safeco Field.  Hernandez got the win and Edwin Diaz struck out two in the final inning to pick up the save.  Dee Gordon went 5-for-5 at the plate at Nelson Cruz added a three-run homer in the fifth to put Seattle ahead 4-1.  Jean Segura drove in two batters for the Mariners, who have won three in-a-row.