Mariners activated RHP Shawn Kelley from the 60-day disabled list, optioned him to Triple-A Tacoma. Kelley is working his way back from partial Tommy John surgery and has a 2.79 ERA and 10/1 K/BB ratio over 9 2/3 rehab innings. He should be up with the Mariners later this season.

Shawn Kelley (elbow) threw another scoreless rehab inning Saturday for Triple-A Tacoma. Kelley also delivered a scoreless frame in his rehab debut last Thursday. The right-hander is making his way back from partial Tommy John surgery and is expected to return to the Seattle bullpen by mid-August.

Shawn Kelley (elbow) threw a perfect inning Thursday in a rehab appearance with Triple-A Tacoma. Kelley struck out two batters in the impressive rehab debut. The 27-year-old right-hander is recovering from partial Tommy John surgery and aiming to return to the major league bullpen by the end of August.

Shawn Kelley (elbow) will begin a minor league rehab assignment Wednesday with Triple-A Tacoma. Kelley was cleared after throwing a successful simulated game Saturday. The 27-year-old right-hander is currently making his way back from partial Tommy John surgery. It's possible he could be back in the M's bullpen by mid-August.

Shawn Kelley (elbow) had a successful simulated game Saturday. Kelly threw two 15-pitch simulated innings and said he "felt normal." Kelley had a setback six weeks ago in his recovery from partial Tommy John surgery, so the M's are hesitant to set a timetable with him. "I was really pleased with his command," pitching coach Carl Willis said. "He hadn't faced hitters for six weeks or so. He threw all of his pitches and commanded the ball well. We're going to see how he feels tomorrow and determine on whether he goes another (simulated) game, or we want to start him back on his rehab assignment."

Shawn Kelley (elbow) threw a successful 37-pitch bullpen session on Sunday morning. Kelley tossed sliders and changeups for the first time since undergoing partial Tommy John surgery last September and reported no abnormal pain or discomfort. The M's are hoping he'll be ready by the middle of August.

Shawn Kelley (elbow) on Thursday threw his first bullpen session since undergoing partial Tommy John surgery. "I threw my first bullpen (session) from the rubber (Thursday), 27 fastballs, and feel great today," Kelley said. "On Sunday I'll throw a full bullpen - I'll throw sliders and change-ups along with fastballs." Kelley is expected to need an additional bullpen session after Sunday and then a simulated game before going out on a rehab assignment. The M's hope to have him back by mid-August.