Santos (biceps) started his rehab assignment with Triple-A Tacoma against Albuquerque on Friday, firing a scoreless eighth inning during which he allowed a hit and a walk.
Robles (elbow) is out of the lineup for Saturday's game against the Cardinals.
Crawford went 1-for-2 with two walks, a hit-by-pitch and a run in a win over the Cardinals on Friday.
Rojas went 0-for-4 with a stolen base in a win over the Cardinals on Friday.
Turner went 2-for-5 with a double in a win over the Cardinals on Friday.
Moore went 1-for-5 with a two-run home run in a win over the Cardinals on Friday.
Rodriguez went 3-for-5 with a run scored and a stolen base in Friday's 6-1 win over the Cardinals.
Miller (11-8) picked up the win in Friday's 6-1 victory over the Cardinals, allowing three hits and two walks over six scoreless innings. He struck out four.
Polanco is not in Friday's lineup against the Cardinals.
Taylor recorded his first career hold in a win over the Athletics on Thursday, firing a perfect sixth inning.
Munoz (elbow) allowed two earned runs on a hit and a walk over one inning of relief in a win over the Athletics on Thursday.
Robles went 2-for-3 with a stolen base and two runs in a win over the Athletics on Thursday.
Rodriguez went 1-for-4 with a solo home run, a walk and two runs scored in Thursday's 6-4 win over the A's.
Raley went 3-for-5 with a two-run homer in Thursday's 6-4 win over the A's.
Raleigh went 2-for-4 with a home run, three RBI and a stolen base in Thursday's 6-4 win over the A's.
Woo (7-2) earned the win Thursday, allowing two runs on eight hits over five innings against the A's. He struck out six.
Crawford is absent from the lineup for Thursday's contest in Oakland.
Arozarena is absent from the lineup for Thursday's game in Oakland.
Arozarena went 2-for-4 with a two-run double and two runs in a win over the Athletics on Wednesday.
Garver went 2-for-5 with a two-run double, an RBI single, a run-scoring groundout and a run in a win over the Athletics on Wednesday.
Robles went 3-for-4 with a two-run double, an RBI single, a walk and three runs in a win over the Athletics on Wednesday.
Moore went 2-for-4 with a double, two RBI, a stolen base and a run scored in Wednesday's win over Oakland.
Urias went 3-for-4 with two doubles, a home run, four RBI and two runs scored while also drawing a walk in Wednesday's win over the Athletics.
Kirby (11-10) picked up the win over Oakland on Wednesday, allowing two runs on six hits over six innings while striking out nine.
Haniger isn't in the Mariners' lineup Wednesday against Oakland.