Aaron Boone, left, and Matt Blake watch Wandy Peralta throw a bullpen at Yankees spring training on Friday.

Source: https://nypost.com/2023/02/17/yankees-set-up-well-to-manage-without-big-money-reliever/

After acquiring Luis Castillo from the Cincinnati Reds at last year’s trade deadline, Flexen went from the rotation to the bullpen.

Source: https://fansided.com/2023/02/06/red-sox-rumors-playoff-moves/

After Ohtani went deep, King walked back-to-back hitters and then hit another to load the bases, forcing Boone to take him out on a night when the bullpen was without Tommy Kahnle, Wandy Peralta and Ian Hamilton because of their recent workloads.

Source: https://nypost.com/2023/07/18/once-reliable-yankees-reliever-michael-king-has-struggled/

After Randy Vásquez allowed two earned runs over 3.2 innings on Friday, Brito delivered five strong innings out of the bullpen.

Source: https://www.bostonherald.com/2023/08/13/sandy-alcantara-tosses-complete-game-dominates-yankees-as-marlins-tie-series/

Akin, who entered Sunday without allowing a run in seven spring innings, believes he’ll be more prepared for a long season in the bullpen after doing it for the first time last year.

Source: https://www.bostonherald.com/2023/03/26/orioles-observations-on-andrew-politis-roster-case-jorge-mateo-in-center-keegan-akins-versatility-and-more/

Alexis Díaz is now focusing on what is expected to a prominent role for him in the Cincinnati Reds bullpen after the shock of seeing his older brother get hurt while they played together for Puerto Rico in the World Baseball Classic.

Source: https://www.limaohio.com/sports/2023/03/20/daz-focusing-on-reds-role-braves-make-apparent-ss-decision/

And, the bullpen was tremendous tonight.”

Source: https://www.greeleytribune.com/2023/07/08/northern-colorado-owlz-lose-boise-hawks-7-5-taylor-swift-night/

A rally by the offense, which included a solo homer from Christopher Morel and a grand slam from Ian Happ, barely softened the blow as the Pirates continued to tack on against the Cubs bullpen.

Source: https://chicago.suntimes.com/cubs/2023/9/20/23883362/cubs-justin-steele-cant-escape-4th-inning-vs-pirates-in-loss

Based on the Cubs’ bullpen usage in Friday’s 3-2 walk-off loss to the Marlins, they will have plenty of bullpen options behind Kilian.

Source: https://www.bostonherald.com/2023/04/29/chicago-cubs-minor-league-report-caleb-kilian-to-make-his-mlb-season-debut-and-pete-crow-armstrong-continues-to-wow/

Based on the Cubs’ bullpen usage in Friday’s 3-2 walk-off loss to the Marlins, they will have plenty of bullpen options behind Kilian.

Source: https://www.bostonherald.com/2023/04/29/chicago-cubs-minor-league-report-caleb-kilian-to-make-his-mlb-season-debut-and-pete-crow-armstrong-continues-to-wow/

Boston Red Sox center fielder Enrique Hernandez leaps and makes a catch against the bullpen wall on a flyout by Tampa Bay Rays’ Luke Raley during the second inning of a baseball game at Fenway Park, Monday, June 5, 2023, in Boston.

Source: https://www.bostonherald.com/2023/06/05/frustrations-boil-over-for-alex-cora-in-frustrating-series-finale-loss-to-rays/

But the Brewers were buyers this time, adding outfielder Mark Canha and first baseman Carlos Santana to a lineup that sorely needed some juice and bringing in a quality left-handed bullpen arm in former Cub Andrew Chafin.

Source: https://chicago.suntimes.com/cubs/2023/8/13/23830292/cubs-brewers-reds-christian-yelich-national-league-central

By virtue of early hitting and a magnificent bullpen, they got it.

Source: https://ndsmcobserver.com/2023/04/martinez-mashes-irish-bullpen-goes-beacon-blanking-in-7-3-win/

Colin Rea (3-3) pitched five innings of three-run ball for the NL Central leaders, and Devin Williams closed it out after the bullpen faltered.

Source: https://www.limaohio.com/sports/2023/06/03/brewers-hold-off-reds-for-10-8-win/

Considering both the terms of the deal and what Fulmer could offer to the bullpen, this is a savvy move for the Cubs, even with the possibility that his performance is gradually declining.

Source: https://www.forbes.com/sites/jaredwyllys/2023/02/15/michael-fulmer-a-savvy-signing-for-chicago-cubs/

Coulombe, who has not yet reported to the team, adds another lefty to a bullpen mix already with Cionel Pérez and Keegan Akin.

Source: https://www.bostonherald.com/2023/03/27/grayson-rodriguez-orioles-top-pitching-prospect-wont-make-starting-rotation-to-begin-season/

Cubs: RHP Brad Boxberger (right forearm strain) is scheduled for a bullpen session Friday.

Source: https://www.wmay.com/2023/07/29/ap-cubs-beat-cardinals-10-3-after-a-testy-start-to-get-back-to-500/

David Peterson tossed three scoreless to start but since he’s been pitching out of the bullpen for the last month he wasn’t stretched out enough to go any deeper.

Source: https://www.bostonherald.com/2023/08/04/mets-no-match-for-james-mccann-orioles-as-baltimore-bashes-buck-showalters-club-10-3/

Derek Law opened and got the first four outs in the emergency bullpen game for the Reds.

Source: https://wtop.com/sports/2023/05/fraley-homers-again-as-reds-beat-alcantara-and-marlins-6-5/

Despite being outhit 15-12 by the Blue Jays over the two games, the patient Twins delivered precisely when they needed to at the plate and leaned back to watch their bullpen dominate with 7 1/3 scoreless innings in the series.

Source: https://triblive.com/sports/twins-sweep-blue-jays-advance-in-playoffs-for-1st-time-in-21-years/