Keep track of the Mariners' recent transactions and injury updates throughout the season.
June 12: INF Dylan Moore activated off 10-day injured list (left calf strain)
The Mariners returned their everyday second baseman, installing Moore back into the lineup in the No. 6 hole against Cleveland on Saturday. Moore missed 22 games with his injury, and the Mariners are hopeful that he can bring back the production he had before he was shelved: a .942 OPS and three homers in his most recent 10 games.
June 12: RHP Yohan Ramirez recalled from Triple-A Tacoma
The righty represents a fresh arm in the bullpen after the club had short starts from Justin Dunn and Justus Sheffield in each of the past two games. He pitched in two games during his last big league stint in May, giving up a combined three earned runs in four innings.
June 12: INF Donovan Walton optioned to Triple-A Tacoma
Walton was the infield fill-in for Moore, so he was always going to be the odd man out once Seattle's everyday second baseman recovered. He was a productive fill-in, hitting .206/.242/.365, including his first big league homer on Memorial Day, and he'll likely be leaned on again sooner than later.
June 12: OF Dillon Thomas optioned to Triple-A Tacoma
After making his emotional big league debut following 10 years in the Minors, Thomas was sent back down after playing in two games, during which he went 1-for-8 with a two-run single in a big win over Detroit on Wednesday. Given how he's produced at Tacoma, and that he was a strong fit in the big league clubhouse, it's possible he could return later this season, depending on the state of Seattle's outfield.
June 12: C/1B Jacob Nottingham outrighted
Nottingham cleared waivers and will join Tacoma and provide depth.
1B Evan White (left hip flexor strain)
Expected return: Possibly within a week
White crushed a three-run homer from the DH spot in his first rehab assignment game for Tacoma, one day after he was a late scratch. Mariners manager Scott Servais didn't put a timeline on his return, but he did note that the first baseman would need to play multiple games to ensure that he's healthy -- and also, that his bat is ready to return to the Majors. White hurt his hip while diving for a ground ball in a game on May 13. (Last updated: June 12)
CF Kyle Lewis (right meniscus tear)
Expected return: Months
Lewis underwent a "minor" procedure by Dr. Neal ElAttrache to clean up the meniscus on June 9 in Los Angeles. Servais said he is "optimistic" that Lewis will play again this season, though it could be some time before he's back given that he'll need to heal then rehab. (Last updated: June 11)
RHP Erik Swanson (right groin strain)
Expected return: TBD
An MRI revealed that Swanson's strain is more than mild, meaning that he will be sidelined for an extended period well beyond the 10-day minimum for his IL stint. The issue surfaced before his most recent outing on May 28, but it became far more pronounced in that appearance, though he was able to pitch through it on adrenaline. Because he'll be down so long, it will be hard for the Mariners to keep his arm active, so it's likely he'll need to be stretched back out when he does recover. (Last updated: May 30)
UTIL Sam Haggerty (right shoulder inflammation)
Expected return: TBD
Haggerty was transferred to the 60-day IL on June 7 and has not taken part in any baseball activity. He’s played all three outfield positions and second base this season. (Last updated: June 8)
LHP Nick Margevicius (thoracic outlet syndrome)
Expected return: TBD
Margevicius has not been involved in any baseball activity. The left-hander was moved to the 60-day IL on May 13. (Last updated: June 4)
RHP Casey Sadler (right shoulder inflammation)
Expected return: July at the earliest
Sadler has been sidelined since April 30. He began lightly tossing, but experienced a setback and will be reevaluated in the coming days. (Last updated: June 4)
RHP Ljay Newsome (right UCL)
Expected return: 2022
Newsome suffered a UCL injury in his May 8 start against Texas and is likely out for the season. (Last updated: May 13)