(Seattle, WA)  --  Sean Manaea tallied a career-high in strikeouts as the A's took down the Mariners 4-1 in Seattle.  Manaea struck out 13 batters over seven innings to clinch his seventh win.  He allowed just three hits and one run.  Ramon Laureano knocked in a pair of runs for Oakland.  Lou Trivino secured his 16th save as the A's won their third straight.  They continue the series tonight.