1:08 PM - Gregory Santos (SEA) who was activated from the injured list Sept. 23, subsequently made two relief appearances during which he fired two scoreless innings while allowing one hit and recording one strikeout.

5:10 PM - Gregory Santos (SEA) Mariners reinstated Santos (biceps) from the 15-day injured list Monday, Daniel Kramer of MLB.com reports.

12:19 PM - Gregory Santos (SEA) (biceps) continued his rehab assignment with Triple-A Tacoma with one-inning scoreless appearances on Wednesday and Saturday, allowing one hit and two walks while recording a strikeout over that span.

12:50 PM - Gregory Santos (SEA) (biceps) fired two-thirds scoreless innings in Triple-A Tacoma's loss to Oklahoma City on Sunday, issuing two walks and recording a strikeout.

12:03 PM - Gregory Santos (SEA) (biceps) allowed an earned run on a walk over two-thirds of an inning in Triple-A Tacoma's win over Oklahoma City on Friday. He struck out two.

12:29 PM - Gregory Santos (SEA) (biceps) fired a scoreless sixth inning in Triple-A Tacoma's extra-inning loss to Oklahoma City on Tuesday, allowing two walks and recording a strikeout.

8:31 AM - Gregory Santos (SEA) (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.

11:35 AM - Gregory Santos (SEA) (biceps) has begun throwing at the Mariners' extended spring training in Arizona but remains without a timetable for return, MLB.com reports.

7:49 PM - Gregory Santos (SEA) Mariners placed Santos on the 15-day injured list with right biceps inflammation Friday, retroactive to Thursday.

7:56 PM - Gregory Santos (SEA) exited Wednesday's game versus the Red Sox due to a bicep injury, Daniel Kramer of MLB.com reports.

6:57 PM - Gregory Santos (SEA) was removed from Wednesday's game versus Boston due to an apparent injury, Daniel Kramer of MLB.com reports.

5:51 PM - Gregory Santos (SEA) (knee) is feeling better and will likely be available out of the bullpen for Saturday's game against the White Sox, Daniel Kramer of MLB.com reports.

7:11 PM - Gregory Santos (SEA) manager Scott Servais said Friday that the results of Santos' MRI on his right knee "came back OK," Daniel Kramer of MLB.com reports.

6:14 PM - Gregory Santos (SEA) was removed from Wednesday's game against the Angels due to an apparent injury, Shannon Drayer of SeattleSports.com reports.

2:46 PM - Gregory Santos (SEA) has allowed an earned run on two hits and a walk over 3.1 innings while recording two strikeouts and a hold in his three appearances since being activated from the 60-day injured list July 8.

4:12 PM - Gregory Santos (SEA) Mariners activated Santos (lat) from the 60-day injured list Monday, Ryan Divish of Seattle Times reports.

11:30 AM - Gregory Santos (SEA) (lat) fired a scoreless fourth inning for High-A Everett against Vancouver on Saturday, recording a strikeout.

11:38 AM - Gregory Santos (SEA) (lat) fired a scoreless inning in Triple-A Tacoma's win over Salt Lake on Tuesday, allowing a hit and recording a strikeout.

7:59 PM - Gregory Santos (SEA) (lat) will start a rehab assignment at Triple-A Tacoma on Tuesday, Shannon Drayer of SeattleSports.com reports.

3:15 PM - Gregory Santos (SEA) (lat) is set to throw another live batting practice Friday in Seattle and could begin a rehab assignment shortly thereafter, MLB.com reports.

12:48 PM - Gregory Santos (SEA) (lat) came away from his live batting practice session Saturday feeling very encouraged after deploying his sinker/slider combination, MLB.com reports.

5:18 PM - Gregory Santos (SEA) (lat) is set to throw a live bullpen session in Miami on Saturday, Daniel Kramer of MLB.com reports.

8:58 AM - Gregory Santos (SEA) (lat) threw a 30-pitch up-and-down bullpen session Saturday, Daniel Kramer of MLB.com reports.

2:49 PM - Gregory Santos (SEA) (lat) has continued throwing bullpens in recent days and is playing catch out to 105 feet between those sessions, MLB.com reports.

11:44 AM - Gregory Santos (SEA) (lat) threw a limited bullpen session before Tuesday's game against the Athletics, the Associated Press reports.

6:19 PM - Gregory Santos (SEA) manager Justin Hollander said Friday that Santos (lat) will likely remain out until July, Daniel Kramer of MLB.com reports.

3:04 PM - Gregory Santos (SEA) (lat) recently upped his throwing distance to 120 feet, MLB.com reports.

1:21 PM - Gregory Santos (SEA) Mariners transferred Santos (lat) to the 60-day injured list Thursday.

3:25 PM - Gregory Santos (SEA) (lat) has progressed to throwing from 75 feet and could soon up his distance to 105 feet, SeattleSports.com reports.

5:23 PM - Gregory Santos (SEA) (lat) has started a throwing program and is getting closer to starting mound work, MLB.com reports. "I don't want to get into much more detail on timelines like that, but it has been very positive," manager Scott Servais said.

6:29 PM - Gregory Santos (SEA) (lat) played catch Monday after an MRI showed improvement, Shannon Drayer of Seattle Sports 710 AM reports.

10:53 AM - Gregory Santos (SEA) Mariners placed Santos (lat) on the 15-day injured list Thursday.

6:35 PM - Gregory Santos (SEA) (lat) will receive an MRI within the next few days, Ryan Divish of The Seattle Times reports.

12:41 PM - Gregory Santos (SEA) will not be ready for Opening Day after an MRI revealed a mild right lat strain, Shannon Drayer of Seattle Sports 710 AM reports.

12:19 PM - Gregory Santos (SEA) (lat) will long-toss from 150 feet Tuesday and might be cleared to throw off a mound in a few days, Ryan Divish of The Seattle Times reports.

12:01 PM - Gregory Santos (SEA) manager Scott Servais said Santos (lat) checked out well after playing catch Tuesday, Shannon Drayer of Seattle Sports 710 AM reports.

12:15 PM - Gregory Santos (SEA) (lat) will resume a throwing program Tuesday, Ryan Divish of The Seattle Times reports.

10:44 AM - Gregory Santos (SEA) manager Scott Servais said Monday that Santos (lat) is progressing and will begin ramping up his throwing program in the coming days, Ryan Divish of The Seattle Times reports.

3:27 PM - Gregory Santos (SEA) is dealing with soreness in his right lat/teres major area, Ryan Divish of The Seattle Times reports.

11:10 AM - Gregory Santos (SEA) (elbow) will be a bit behind schedule at the start of Mariners camp, Ryan Divish of The Seattle Times reports.

4:35 PM - Gregory Santos (SEA) White Sox traded Santos (elbow) to the Mariners on Saturday in exchange for Prelander Berroa, Zach DeLoach and the 69th pick in the 2024 MLB Draft, Jeff Passan of ESPN.com reports.