MILWAUKEE (AP) — AJ Smith-Shawver underwent Tommy John surgery and Craig Kimbrel elected free agency Monday in the latest pitching moves for the slumping Atlanta Braves.

Smith-Shawver had reconstructive surgery on the ulnar collateral ligament in his right elbow, knocking the rookie right-hander out for the rest of this season and likely the start of next season. Dr. Keith Meister performed the procedure in Arlington, Texas.

"It was a complete Tommy John, and now he starts the long road of the rehab," manager Brian Snitker said before the Braves' 7-1 victory over the Milwaukee Brewers that snapped a seven-game skid. "Everything went well."

Kimbrel opted for free agency two days after the Braves designated the nine-time All-Star reliever for assignment. The club had attempted to send Kimbrel outright to its Triple-A Gwinnett affiliate.

Braves officials already had announced May 30 that Smith-Shawver had a torn UCL. He left a 5-4 loss to the Philadelphia Phillies a day earlier and said he felt a "pop."

Smith-Shawver, 22, went 3-2 with a 3.86 ERA in nine starts this season. He struck out 42 batters in 44 1/3 innings.

“He's got a nice career ahead of him,” Snitker said. “This is just a little setback. Still a very young player. He'll have a really good career.”

Kimbrel had been attempting to make a comeback with Atlanta, where he spent his first five major league seasons and earned four straight All-Star selections from 2011-14. His 186 saves with the Braves are the most in franchise history.

The 37-year-old Kimbrel went 1-1 with a 2.00 ERA in 18 combined appearances with Gwinnett and Double-A Columbus this year before getting called up to Atlanta last week.

But he pitched in just one game with the Braves before getting designated for assignment. He worked one scoreless inning in Atlanta's 5-4, 10-inning loss at San Francisco on Friday.

Kimbrel is attempting to rejuvenate his career after a disappointing 2024 season in which he went 7-5 with a 5.33 ERA and 23 saves for the Baltimore Orioles, who released him last September.

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Atlanta Braves' AJ Smith-Shawver pitches during the second inning in the first baseball game of a doubleheader against the Philadelphia Phillies Thursday, May 29, 2025, in Philadelphia. (AP Photo/Matt Slocum)

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Atlanta Braves pitcher Craig Kimbrel throws to a San Francisco Giants batter during the seventh inning of a baseball game Friday, June 6, 2025, in San Francisco. (AP Photo/Godofredo A. Vásquez)

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