Seattle at Chicago

Seattle went through a rough stretch, losing five of six, but the Mariners got well again by sweeping a three-game series at San Diego while allowing only three runs. The Mariners have allowed just seven runs in their past five games as they lead the AL West by 2.5 games over Houston. Seattle has won five road games in a row, and Luis Castillo comes off a good performance against the Yankees, as he gave up a run on six hits in six innings. Chicago has reverted to its losing ways with a current four-game loss streak while being outscored 33-9. The White Sox have lost six of their seven home games against Seattle. Chicago's bullpen has a 4.62 ERA and a 1.42 WHIP with only three saves this season. Seattle improved to 13-8 on the road with its sweep of the Padres. Take the Mariners.