Atlanta transferred Bummer (shoulder) to the 60-day injured list Thursday.

EDGE Analysis

Left shoulder inflammation sent Bummer to the injured list in late August, and although he began a throwing program Saturday, his move to the 60-day IL will officially rule him out for the rest of the season. He'll give up his place on the 40-man roster to Brett Wisely, who was claimed off waivers from San Francisco in a corresponding move.

Atlanta announced Saturday that Bummer (shoulder) has resumed a throwing program, but the left-hander hasn't yet been cleared for bullpen sessions, MLB.com reports.

EDGE Analysis

Bummer has been on the injured list since Aug. 24 due to left shoulder inflammation, and while he hasn't been shut down for the season, he's running out of time to complete his throwing program and rejoin the Atlanta bullpen. Prior to being shut down, Bummer recorded three wins and two holds while submitting a 3.81, 1.25 WHIP and 51:17 K:BB in 54.1 innings over 42 appearances for Atlanta.

Atlanta placed Bummer on the 15-day injured list Sunday due to left shoulder inflammation.

EDGE Analysis

The left-hander threw 1.1 scoreless innings Saturday against the Mets, which is presumably when he suffered the injury since that was his first appearance in nearly a week. Bummer will be eligible to be reinstated Sept. 8, though it's unclear if he's expected to be healthy by that point.

Bummer allowed three runs on four hits and no walks while striking out one batter over two innings in a no-decision as an opener against St. Louis on Saturday.

EDGE Analysis

Bummer was tabbed to open the bullpen game for Atlanta and gave the team two innings. While he was able to keep the ball in the strike zone, throwing 21 of 33 pitches for strikes and issuing zero free passes, he was tagged for three runs in the second frame, with two of the runs coming on a Nolan Gorman homer. It's not yet clear how Atlanta plans to fill the rotation spot that opened when Spencer Schwellenbach (elbow) landed on the injured list in early July, so Bummer could be called upon to fill the same role after the All-Star break, though the team figures to eventually settle upon a traditional starter.

Bummer will serve as Atlanta's opening pitcher in a bullpen game Saturday against the Cardinals.

EDGE Analysis

For the second Saturday in a row, Bummer will fill an opener role in a bullpen game while Atlanta has yet to settle on a permanent replacement in the rotation for Spencer Schwellenbach (elbow), who is likely to be sidelined until around September. In his previous turn as an opener last weekend against the Orioles, Bummer covered 2.1 innings, and Atlanta could be looking for him to handle a similar workload Saturday. Atlanta doesn't have an obvious candidate to serve as a bulk reliever behind Bummer, though Jesse Chavez and the newly claimed Joey Wentz are available on three days' rest and should be capable of covering multiple frames, if needed.

Bummer will start Saturday's game against the Orioles, Mark Bowman of MLB.com reports.

EDGE Analysis

Atlanta is going to lean on its bullpen to get through Saturday's contest, and Bummer will officially take the mound for the first inning. The 31-year-old owns a 2.86 ERA and 1.18 WHIP through 34.2 frames on the year.

Atlanta activated Bummer from the bereavement list Monday.

EDGE Analysis

Bummer missed the weekend series against the Rays but has rejoined the club for its early-week series in Toronto. The southpaw has yielded three runs with a 7:4 K:BB over five innings this season.

Atlanta placed Bummer on the bereavement list Friday.

EDGE Analysis

Bummer will miss at least the weekend series in Tampa Bay but could rejoin the club early next week in Toronto. Zach Thompson has taken his spot in the bullpen.

Bummer (0-1) took the loss against the Padres on Saturday, allowing one run on one hit and one walk while striking out two across two-thirds of an inning.

EDGE Analysis

Bummer was called into action for the seventh inning after Spencer Schwellenbach tossed six scoreless frames. Bummer came out firing with two straight strikeouts, but he was lifted after giving up a ground-rule double from Jake Cronenworth and intentionally walking Xander Bogaerts. Yuli Gurriel proceeded to knock an RBI single off Daysbel Hernandez, and the run was credited to Bummer, who came away with the loss after Atlanta failed to score over the next two innings. Bummer has given up a run in each of his first two outings of the 2025 season.

Bummer has a 0.00 ERA and 4:1 K:BB through five Grapefruit League innings.

EDGE Analysis

The southpaw will be part of Atlanta's setup crew this season, along with right-hander Pierce Johnson and fellow lefty Dylan Lee. Bummer recorded a career-high 27 holds back in 2019 with the White Sox, and he could approach that number in 2025 given his impressive stuff -- he generated a 43.9 percent whiff rate with his sweeper last season, and no pitcher in baseball had a lower barrel rate allowed than his 1.3 percent.