The Mariners placed Raley on the 10-day injured list Wednesday with a right oblique strain.
Raley was injured when he tweaked his side during batting practice Tuesday. General manager Justin Hollander said that Raley been diagnosed with a "Grade 1 to 1-plus" strain and will be sidelined for a minimum of six weeks, per Daniel Kramer of MLB.com. Samad Taylor will get the start in right field for Seattle in Wednesday's game against the Angels.