Graterol underwent right shoulder labrum surgery Thursday.

The Dodgers expect the reliever to miss the first half of the 2025 season but be back sometime after the All-Star break. Graterol made just seven appearances during the regular season due to a nagging shoulder issue, although he did return to pitch in the World Series. The 26-year-old will be in his third of four arbitration years this offseason.

The Dodgers outrighted Brogdon to Triple-A Oklahoma City on Thursday.

The move frees up a spot on the 40-man roster. Brogdon -- who missed much of the 2024 season with a foot injury -- will remain in the organization as relief depth.

The Rockies signed O'Loughlin to a minor-league contract Thursday that includes an invitation to spring training, Bob Nightengale of USA Today reports.

O'Loughlin, 24, reached the big leagues for the first time in 2024 with the Athletics, allowing five runs over 9.2 innings. He split time between the rotation and bullpen at hitter-friendly Triple-A Las Vegas, holding a 6.04 ERA and 80:34 K:BB across 73 frames. The lefty could compete for a swingman role with the Rockies but is likely to begin the season at Triple-A Albuquerque.

The Cardinals are not mulling a move to the rotation for Helsley, Derrick Goold of the St. Louis Post-Dispatch reports.

All 239 appearances for Helsley at the major-league level have come in relief, but he came up through the minors as a starting pitcher. While there has been some speculation the Cardinals might consider giving the 30-year-old another chance to start, it does not appear that is in the plans following Helsley's major-league-leading 49 saves in 2024. They will, however, reportedly entertain trade offers for Helsley, who is entering his final year of arbitration eligibility.

Paredes agreed to a minor-league contract with Atlanta on Monday, which includes an invitation to spring training, Ari Alexander of KPRC 2 Houston reports.

Paredes returned to the big leagues in 2024 after spending the entire 2023 campaign at Triple-A. He made stops with the Cubs and Brewers, posting a 1.66 ERA and 1.06 WHIP with a 16:10 K:BB over 18 regular-season relief appearances (21.2 innings). Paredes will get the opportunity to make the Opening Day roster with his new club, who is looking for bullpen help following the news that Joe Jimenez is out for the next 8-to-12 months while recovering from knee surgery.

The Rockies claimed Herget off waivers from the Cubs on Friday.

Herget has now gone from Atlanta to Chicago to Colorado since September. The righty was one of the better relievers in the American League in 2022 with the Angels when he posted a 2.48 ERA and 0.91 WHIP while notching nine saves, but he has a 4.57 ERA and 1.38 WHIP over the last two seasons and has spent substantial time in the minors.

Brown will undergo a scan on his neck in mid-November, with the hope that he will be cleared to throw without restrictions this offseason, Meghan Montemurro of the Chicago Tribune reports.

Brown didn't pitch after early June this season due to a benign area of concern in his neck. The Cubs seem optimistic that he will head into spring training healthy, but they won't know for sure until the results of the exam are in. Brown split time between the rotation and bullpen with the Cubs in 2024, holding a 3.58 ERA, 1.08 WHIP and 64:19 K:BB over 55.1 innings. If healthy, he would likely compete for a spot in the rotation in 2025.

Jimenez is expected to mis the next 8-to-12 months while recovering from surgery to repair damaged cartilage in his left knee, Mark Bowman of MLB.com reports.

This news came out of the blue for Jimenez, who was one of Atlanta's top relievers during the 2024 campaign. A timeline for his return should come into focus as he begins to progress in his rehab, but it appears he'll be sidelined for the first half of the 2025 season if not longer.

Simpson cleared waivers and was outrighted off the Marlins' 40-man roster Monday.

A 27-year-old southpaw, Simpson had surgery in April to repair the ulnar nerve in his left elbow and was able to return late in the year with a rehab assignment before being assigned to Triple-A. Simpson logged a 7.62 ERA, 1.77 WHIP and a 19:7 K:BB in his final 13 innings last season and has never reached the big leagues.

The Cubs designated Herget for assignment Monday, Maddie Lee of the Chicago Sun-Times reports.

The move clears a spot on the 40-man roster for Rob Zastryzny, who was claimed off waivers. Herget himself was a waiver claim of the Cubs but never made an appearance for them.