Jesus Montero hit a grand slam, Michael Saunders homered among his three hits and the Seattle Mariners hammered Homer Bailey in a 16-0 rout of the Cincinnati Reds on Monday.
Saunders connected off Bailey, and Justin Smoak added two hits off the right-hander, driving in three runs. Montero's slam came off Wilken De La Rosa, one of two non-roster pitchers left in Reds camp.
Bailey was scheduled to pitch five innings but lasted only 3 1-3, allowing nine runs on nine hits and two walks. He struck out five.
Saunders also doubled, singled and scored three times from the leadoff spot.