(Seattle, WA)  --  The Seattle Mariners remain three-and-a-half games back of first-place Oakland after hammering the Tampa Bay Rays, 12-5.  Felix Hernandez picked up his fourth win of the season, giving up four runs on eight hits and striking out seven.  Mike Zunino, Stefan Romero, and Justin Smoak each homered for the Mariners.  Seattle and Tampa Bay will play again tonight at Safeco Field.