Jameson (elbow) underwent Tommy John surgery Wednesday, Alex Weiner of ArizonaSports.com reports.

EDGE Analysis

Giving the timing of the procedure, Jameson seems doubtful to return to a major-league mound before the 2025 campaign. The 26-year-old right-hander pitched to a 3.32 ERA and 37:18 K:BB over 40.2 innings (three starts, 12 relief appearances) this season with the Diamondbacks.

Manager Torey Lovullo announced Sunday that Jameson (elbow) will require Tommy John surgery, Theo Mackie of The Arizona Republic reports.

EDGE Analysis

The right-hander elected for the rest-and-rehab route after being diagnosed with a UCL strain in late July, but he'll ending needing Tommy John surgery. Jameson had a 3.32 ERA over 40.2 innings this season but is now likely to be sidelined until 2025 given the typical 12-to-18 month recovery timeline for the procedure.

Jameson (elbow) has been "pulled back" on his throwing program due to arm tenderness, Alex Weiner of ArizonaSports.com reports.

EDGE Analysis

Jameson chose to rehab his strained UCL rather than have surgery to repair the issue. He was hoping to return at some point in 2023, though this development has almost certainly closed the door on that possibility and his 2024 campaign could also be impacted.

Jameson (elbow) is throwing out to 100 feet and could throw a bullpen session next week, MLB.com reports.

EDGE Analysis

Jameson, who was diagnosed with a sprained UCL, has elected rehab over Tommy John surgery. Arizona manager Torey Lovullo is not ruling out a return this season.

Jameson (elbow) has been throwing from up to 90 feet, Alex Weiner of ArizonaSports.com reports.

EDGE Analysis

Jameson has been sidelined by a UCL strain since July 7 and is currently on the 60-day injured list. While a return is still well in the future, manager Torey Lovullo said that there is hope that Jameson will be able to take the mound again in the current campaign.

Jameson (elbow) has elected not to undergo surgery on his UCL strain, Alex Weiner of ArizonaSports.com reports.

EDGE Analysis

It was reported earlier this month that Jameson was seeking second opinions on his right elbow -- usually not a good sign. However, Jameson has received good news in that he will at least get to try the rest-and-rehab route instead. A procedure is often still necessary in these cases, but Jameson will try his best to stave off surgery.

Jameson will get second opinions this week on his elbow injury, Theo Mackie of the Arizona Republic reports.

EDGE Analysis

Jameson, who was moved from the 15-day to 60-day injured list Saturday, sustained the injury during a pitch in Thursday's game. At the time, he reported it to manager Torey Lovullo, pitching coach Brett Strom and trainer Max Esposito as a cramping in his hand and mentioned nothing about the elbow. The right-hander remained in the game to throw another 17 pitches. Lovullo was told the extra pitches did not impact the injury and that "the damage had already been done." The manager acknowledged that doctors are looking at the area of the ulnar collateral ligament, which suggests Tommy John surgery is a possibility.

The Diamondbacks transferred Jameson (elbow) to the 60-day injured list Saturday.

EDGE Analysis

Jameson landed on the injured list Friday with right elbow inflammation, and his move to the 60-day IL ensures he'll be sidelined through early September. Tyler Gilbert was selected from Triple-A Reno to fill Jameson's spot on the 40-man roster.

Arizona placed Jameson on the 15-day injured list Friday with elbow inflammation.

EDGE Analysis

Jameson had been pitching well in long relief for the Diamondbacks before a rough outing Thursday versus the Mets in which he allowed two earned runs on five hits and one walk over three innings. The 25-year-old will be out until at least July 22 and is set to undergo an MRI to determine the extent of the elbow issue.

Jameson allowed one hit and one walk while striking out four over three scoreless relief innings in Thursday's 6-1 loss to the Rays.

EDGE Analysis

Jameson was part of a bullpen crew that logged seven scoreless frames after starter Brandon Pfaadt allowed six runs in two-plus innings. For Jameson, it was his fourth consecutive scoreless, multi-inning appearance, and over that stretch he's given up seven hits and one walk over 9.1 innings with 10 strikeouts. The right-hander has a 2.61 ERA out of the bullpen since being called up from Triple-A Reno in late May. The Diamondbacks are expected to be in the market for starting pitching, but until they land one, Jameson has a path back into the rotation. He's thrown 20.2 innings over eight relief appearances, so it wouldn't take long to stretch him out.