MLB: Seattle 6, Oakland 3

OAKLAND, Calif., Sept. 5 (UPI) -- Jack Wilson's two-run single highlighted a four-run second inning Friday that started Seattle on its way to a 6-3 decision over Oakland.

The Mariners won their fourth straight.

Oakland closed to within 4-3 going into the eighth, but Kenji Johjima had a sacrifice fly in that inning and Jose Lopez added an insurance homer in the ninth.

Ryan Rowland-Smith (3-2), who got the win in his 10th start of the year, gave up three runs on four hits in eight innings. Mark Lowe came on in the ninth for his second save.

Clayton Mortensen (0-2), who was called up from the minors to make the start, surrendered four runs on six hits in seven innings to take the loss. Mortensen began the season in the St. Louis system.