MLBTR’s positional preview of the upcoming free agent class concludes with a look at the right-handed relief class. There are a couple established closers and some breakout arms who should get plenty of buzz as leverage pieces, yet it’s a rather thin group overall.

Player ages, listed in parenthesis, are for the 2025 season. Only players who have appeared in the majors this year or spent the entire season on the MLB injured list are included.

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High-Leverage Arms

• Jeff Hoffman (32)

MLBTR’s Steve Adams explored Hoffman’s emergence in a piece for Front Office subscribers last week. The former top 10 pick bounced around the league before finding a home in Philadelphia. He has a sterling 2.28 ERA across 118 2/3 innings for the Phils over the past two seasons. Hoffman has pitched his way up the leverage hierarchy and proven up to the challenge of tougher assignments. He posted a 2.17 mark while striking out more than a third of batters faced over 66 1/3 frames this season. Hoffman should at least land a three-year deal and has a shot at four — especially if he continues to elevate his profile with a strong postseason showing at the back of Rob Thomson’s bullpen.

• Daniel Hudson (38)

Hudson returned from successive knee injuries in 2022-23 to post a strong season out of the Dodger bullpen. The veteran tossed 63 innings with an even 3.00 earned run average. He struck out nearly a quarter of opponents against a solid 7.5% walk rate. Hudson’s average fastball velocity returned to its typical 95-96 MPH and he induced swinging strikes at a huge 14.7% clip. His age probably limits him to one year, but Hudson should handily beat this season’s $2MM base salary.

• Tommy Kahnle (34)

The Yankees’ affinity for ground-ball relievers led them back to Kahnle. He has turned in consecutive sub-3.00 ERA showings over the course of his two-year free agent deal. Kahnle had an excellent 2.11 mark across 42 2/3 frames this season. He induced grounders at a huge 58.6% clip while striking out nearly 26% of opponents behind a stellar 16.4% swinging strike rate. Kahnle’s command can be a bit wobbly, but few pitchers match his combination of swing-and-miss and grounders. He’s adept at avoiding hard contact and neutralizes left-handed hitters with the changeup that he throws almost three quarters of the time. Even at 34, he should be in line for another multi-year deal.

• Andrew Kittredge (35)

The Cardinals took a flier on Kittredge, who had missed most of 2022-23 rehabbing from Tommy John surgery. They were rewarded with 70 2/3 innings of 2.80 ERA ball in mostly high-leverage spots. Kittredge leans primarily on a slider that gets a ton of chases outside the strike zone. His 23.3% strikeout rate and 7% walk percentage are solid, while he has gotten swinging strikes at a strong 13.7% clip. Kittredge had a 1.88 ERA in 71 2/3 innings with the Rays in his previous healthy season. He has a multi-year track record of excellent results in pressure situations.

• Chris Martin (39)

Martin has indicated that 2025 will be his final season. He’ll look for a one-year deal, presumably on a team with playoff aspirations. Martin should have no trouble finding a high-leverage role on a contender. He had an excellent two-year run with the Red Sox, turning in a 2.16 ERA across 95 2/3 innings. This season’s 3.45 mark wasn’t as dominant as Martin’s 1.05 ERA from 2023, but he fanned 27.8% of batters faced while limiting his walks to a microscopic 1.7% clip. Martin may have the best command of any reliever in the game. He hasn’t allowed an ERA above 4.00 in six seasons.

• David Robertson (40)

Robertson had another impressive season, this time at the back of the Texas bullpen. The extremely durable veteran fired 72 innings with an even 3.00 ERA. He struck out more than a third of his opponents while getting ground-balls at a solid 48.8% rate. Robertson has topped 60 innings in each of the past three seasons and hasn’t allowed an ERA higher than 3.03 in any of them. He hasn’t lost any zip on the cutter that serves as his primary pitch. Robertson is probably limited to one year because of his age, but he should command a strong salary and step right back into the late innings with a contender. Robertson will decline his end of a $7MM mutual option in favor of a $1.5MM buyout.

• Blake Treinen (37)

Treinen lost almost all of 2022-23 battling shoulder injuries that eventually required surgery. The Dodgers brought him back on a $1MM option and have been rewarded with 46 2/3 frames of 1.96 ERA ball. Treinen suffered a bruised lung on a hit-by-pitch in Spring Training and had a brief IL stay in August because of hip inflammation. He hasn’t had any arm issues and has had no trouble stepping back into important innings. Treinen punched out more than 30% of opponents against a 6% walk rate. While he didn’t get nearly as many grounders as he did during his best seasons with the A’s, the strikeout/walk profile was excellent. Before the shoulder surgery, Treinen’s sinker sat around 97 MPH. It was down to the 94-95 range this season. That’s a bit of a concern at his age, but the dominant results ensure he’ll land a sizable raise relative to this year’s rebound salary.

Possible Closers

• Carlos Estévez (32)

When Estévez first hit the market two seasons ago, he was a hard-throwing upside play who hadn’t put things together in Colorado. That has been one of the Angels’ better free agent moves in recent years. Estévez immediately stepped in as the Halos’ closer and turned in a 3.36 ERA with 51 saves over a season and a half. Los Angeles flipped him to the Phillies for a pair of highly-regarded pitching prospects at the deadline. Estévez has saved another six games with Philadelphia, turning in a 2.57 ERA across 21 frames. His cumulative 23.6% strikeout percentage and 12.5% swinging strike rate are more solid than elite. Yet he’s showing the best command of his career (5.7% walk rate) while averaging nearly 97 MPH on his heater. He’s 26-31 in save chances. Estévez should get another multi-year deal and has a shot at breaking $30MM if he lands three years.

• Clay Holmes (32)

Holmes entered the season with the highest earning power in the relief class. That’s probably no longer the case. Holmes’ aggregate rate stats — a 3.14 ERA with a solid 25.1% strikeout rate and a massive 65% grounder percentage — don’t point to this being a bad year. Holmes blew 13 of 43 save opportunities, though, five more than any other pitcher. He had a 3.75 ERA in the second half after carrying a 2.77 mark into the All-Star Break. The Yankees have bumped him from the closing role going into the playoffs. Holmes still has a case for three years, but he hits the market with more red flags than the ERA and elite ground-ball rate would suggest.

• Kenley Jansen (37)

Jansen is going to look for a closing opportunity to add to his career tally of 447 saves. He needs 32 more to pass Lee Smith for third on the all-time leaderboard. Pitching two more seasons would give him a chance to get to 500. There’ll be teams willing to give him that opportunity. Jansen turned in a 3.29 ERA while locking down 27 of 31 attempts with the Red Sox this season. He finished his Boston tenure with a 3.44 mark in 99 1/3 innings over two seasons. While Jansen isn’t the utterly dominant force he was with the Dodgers, he’s still a good closer.

• Craig Kimbrel (37)

Kimbrel is just behind Jansen on the career saves leaderboard. Whether he’ll get another ninth inning chance is in more doubt. The Orioles released the nine-time All-Star last month. Kimbrel had started the season reasonably well and carried a 2.80 ERA with 23 saves into the All-Star Break. The second half was an absolute disaster. He allowed 22 runs (20 earned) with 15 walks and 20 strikeouts over his final 17 innings. Kimbrel certainly won’t approach last year’s $13MM free agent guarantee. He’ll probably get a big league contract but might need to pitch his way back into the ninth inning.

• Paul Sewald (35)

Sewald’s season wasn’t as poor as Kimbrel’s, but he also lost his hold on the ninth inning. Sewald had only allowed one earned run through the first two months, but a disastrous July (12 runs in 10 innings) pushed him out of the closer’s role in Arizona. While his performance rebounded somewhat down the stretch, he finished the season on the injured list with neck discomfort. Sewald ended with a 4.31 ERA in 39 2/3 innings. He struck out 26.1% of opponents — down six points relative to 2023 — against a 6.1% walk rate. This was his toughest year since his 2021 resurgence with the Mariners.

• Kirby Yates (38)

The Rangers brought in Yates on a $4.5MM free agent deal last winter. It was one of the best bargain pickups of the offseason. Yates turned in a season similar to his dominant 2019 campaign when he was a member of the Padres. He worked to a 1.17 ERA while punching out almost 36% of opposing hitters. Yates took the closing job in Arlington and locked down 33 of 34 opportunities. Yates doesn’t have pristine control, but he misses bats in bunches and rarely gives up damaging contact. He has certainly earned himself a nice boost on this year’s earnings and has a chance at a two-year deal even at 38.

Middle Relief

• Shawn Armstrong (34)

Armstrong split his season between the Rays, Cardinals and Cubs. He had a poor ERA with Tampa Bay but more appealing strikeout and walk numbers that could land him a big league deal. He finished the year with a 4.86 ERA and a 22.4% strikeout rate over 66 2/3 innings.

• Scott Barlow (32)

A one-time closer in Kansas City, Barlow has moved into the middle innings with the Padres and Guardians over the past season and a half. Cleveland released him last month after he pitched to a 4.25 ERA in 55 innings. Barlow still fanned more than 28% of opponents, though his strikeout rate and velocity trended down as the season progressed.

• Jacob Barnes (35)

A journeyman middle reliever, Barnes posted a 4.36 ERA over 66 innings for the Nationals this year. He struck out just under 20% of opponents.

• Buck Farmer (34)

Farmer had a nice season with the Reds, his third year in Cincinnati. He tossed 71 innings with a 3.04 earned run average and nearly average strikeout (23.4%) and walk (9.7%) rates.

• Luis García (38)

García is a hard-throwing sinkerballer. This year’s 50.3% ground-ball rate is below his typical level. García carried a 3.71 ERA in 43 2/3 innings with the Angels through the deadline. A trade to the Red Sox flopped, as he was tagged for 15 runs over 15 1/3 innings in a Boston uniform.

• Yimi García (34)

García was missing a ton of bats for the Blue Jays early in the season. He looked on his way to at least a strong two-year deal at the time. Elbow injuries unfortunately soured his season, as he barely pitched from the middle of June onward. García only made 10 appearances for the Mariners, who acquired him in a deadline deal. His season ended in September when recurring elbow soreness shut him down.

• Kendall Graveman (34)

Graveman missed the entire season after undergoing offseason shoulder surgery. He posted a 3.12 ERA in 66 1/3 innings between the White Sox and Astros in 2023.

• Joe Kelly (37)

Kelly battled injuries and struggled to a 4.78 ERA over 32 innings this year. He still pushes close to triple digits with his fastball but had a relatively pedestrian 24.5% strikeout rate this season. Kelly had fanned more than 30% of opponents in each of the previous two seasons.

• José Leclerc (31)

A closer early in his career with the Rangers, Leclerc has landed as a volatile middle reliever in recent years. He misses a ton of bats (30.9% strikeout rate, 14.1% swinging strike percentage) while struggling to throw strikes consistently. Leclerc made 64 appearances with a 4.32 earned run average this year.

• Jonathan Loáisiga (30)

Loáisiga gets a ton of ground-balls when he’s at his best. Durability has been an issue, though. He only made three appearances before undergoing season-ending UCL surgery in April.

• Jorge López (32)

López pitched well for the Cubs down the stretch after his controversial exit from the Mets. He finished the year with a 2.89 ERA over 53 combined innings. López had roughly league average strikeout and walk rates while getting ground-balls at a strong 51% clip.

• Keynan Middleton (31)

Middleton lost the entire season — and potentially his St. Louis tenure — to flexor tendon surgery. In 2023, he struck out more than 30% of opponents with a 3.38 ERA in 50 2/3 innings.

• Shelby Miller (34)

The Tigers released Miller last week. He had pitched to a 4.53 ERA over 55 2/3 innings. Miller threw a lot of strikes but had a pedestrian 21.8% strikeout percentage.

• Héctor Neris (36)

Neris walked a tightrope with his command throughout his time with the Cubs. Chicago released him late in the summer before he would vest a $9MM player option for next season. Neris returned to his old stomping grounds in Houston, where he dialed in his command but struggled with home runs in a small sample. He wrapped the season with 59 1/3 innings of 4.10 ERA ball with a strikeout rate just below 25% and a 10.8% walk percentage.

• Adam Ottavino (39)

Ottavino continues plugging away as he nears his 40th birthday. He struck out 28.6% of opponents with a 4.34 ERA over 56 innings this year. It’s a slight step back from his 2023 production but Ottavino still misses a lot of bats and shouldn’t have an issue finding another big league deal.

• Lucas Sims (31)

Sims had a 3.57 ERA with a 26% strikeout rate across 35 1/3 innings for the Reds going into the trade deadline. As was the case with García, his production tanked after being moved to the Red Sox. Sims allowed 10 runs with more walks than strikeouts across 14 innings for the Sox.

• Drew Smith (31)

Smith has been a solid middle innings arm for the Mets over his career. He had a 3.06 ERA in 19 appearances early this year before suffering an elbow injury that required a UCL reconstruction.

• Ryne Stanek (33)

Stanek sits in the upper 90s and misses a lot of bats. His command comes and goes and he has allowed more than four earned runs per nine in consecutive seasons. Stanek pitched to a 4.88 ERA through 55 1/3 frames between the Mariners and Mets this season.

• Hunter Strickland (36)

Strickland inked a minor league deal with the Angels and cracked the MLB roster in early April. He was a quietly valuable bullpen piece for Ron Washington, working 73 1/3 innings of 3.31 ERA ball in his first major league action in two years. Strickland’s 19.4% strikeout rate is going to limit interest, but he has a shot at a big league deal this time.

Swing Options

• Chase Anderson (37)

Anderson has been a starter for most of his career. He worked almost entirely in relief this year between the Red Sox and Rangers. Anderson pitched to a 5.40 ERA with a 16.5% strikeout rate through 58 1/3 frames as a mop-up option. He’ll be limited to minor league deals.

• Jakob Junis (32)

Signed by the Brewers to a $7MM deal as a starter, Junis suffered an early-season shoulder injury and pitched mostly in relief upon returning. He split his time between Milwaukee and the Reds, as Cincinnati added him in the Frankie Montas deal. Junis turned in a 2.69 ERA across 67 innings covering 24 appearances. He demonstrated excellent control but didn’t maintain the strikeout stuff he’d shown over his breakout 2023 season in San Francisco. Junis will collect a $3MM buyout on an $8MM mutual option — he’s likely to decline his end of the deal — and could get interest in starting and relief roles this winter.

• Joe Ross (32)

Ross made it back to the majors after Tommy John surgery robbed him of the 2022-23 seasons. He missed a couple months with a back injury but had decent results for the Brewers when healthy. He turned in a 3.77 ERA with slightly below-average strikeout and walk marks across 74 innings.

• Michael Soroka (27)

Soroka was bombed over nine starts to begin the season. The White Sox moved him to the bullpen in the middle of May. He was quietly dominant after being kicked into relief, where he struck out 39% of batters faced with a 2.75 ERA over 36 innings. Soroka walked an alarming 13% of opponents out of the ’pen, so it wasn’t without some concern, but he could’ve been a key deadline target for teams looking to add swing-and-miss to the late innings. Unfortunately, he suffered a shoulder strain around the All-Star Break and didn’t return until the final week of the season. Soroka is just 27, so perhaps there are teams that believe they can recapture some of the upside that made him an All-Star starting pitcher before his Achilles injuries with the Braves. The whiffs will surely have a lot of clubs intrigued if he’s willing to sign as a pure reliever.

• Ross Stripling (35)

Stripling struggled for the second straight year. He lost his spot in the A’s rotation midway through the season. Stripling finished the year with an ERA slightly north of 6.00 through 85 1/3 innings. He’s likely looking at minor league offers.

• Spencer Turnbull (33)

A starter for most of his career, Turnbull was pushed to the bullpen early in the year with the Phillies. He’d outperformed Taijuan Walker and looked poised to seize the fifth starter job before suffering a lat strain that ended his regular season in late June. He was excellent before the injury, working to a 2.65 ERA while striking out 26% of opponents through 54 1/3 innings. He could make it back for Philadelphia’s playoff push.

• José Ureña (33)

Ureña pitched well enough to hold a roster spot with the Rangers all year. The former Marlin put up a 3.80 ERA in 109 innings spanning 33 appearances. His strikeout and walk numbers aren’t good, but he kept the ball on the ground half the time an opponent made contact. Ureña could get a low-base MLB deal.

Depth Types

• Daniel Bard (40)
• Matt Barnes (34)
• Phil Bickford (29)
• John Brebbia (35)
• Nick Burdi (32)
• Miguel Castro (30)
• Jesse Chavez (41)
• Adam Cimber (34)
• José Cisnero (36)
• John Curtiss (32)
• Chris Devenski (34)
• Carl Edwards Jr. (33)
• Dylan Floro (34)
• Giovanny Gallegos (33)
• Adrian Houser (32)
• Jay Jackson (37)
• Brad Keller (29)
• Casey Kelly (35)
• Matt Koch (34)
• Chad Kuhl (32)
• Dominic Leone (34)
• Scott McGough (35)
• Erasmo Ramírez (35)
• Yohan Ramírez (30)
• Gerardo Reyes (32)
• Trevor Richards (32)
• Ryder Ryan (30)
• Bryan Shaw (37)
• Burch Smith (35)
• Josh Staumont (31)
• Touki Toussaint (29)
• Jordan Weems (32)
• Mitch White (30)

Club Options

• Seranthony Domínguez (30)

The O’s hold an $8MM option on Domínguez that comes with a $500K buyout. It’s a $7.5MM call that feels it could go either way. Domínguez didn’t have a great overall regular season, allowing a 4.45 ERA through 58 2/3 frames. He had a sub-4.00 mark after the Orioles acquired him from Philadelphia at the deadline. Domínguez picked up 10 saves while fanning nearly 29% of batters faced for the O’s. He has high-leverage stuff with inconsistent results over the past two seasons.

• Luke Jackson (31)

The Braves reacquired Jackson from the Giants at the deadline. He carried a 5.40 ERA over 35 frames at the time. Atlanta was hoping for a rebound, and while that happened to some extent, it probably wasn’t what they had in mind. Jackson posted a 4.50 ERA over 18 innings in his return. He finished the regular season with a 5.09 mark through 53 frames. Jackson misses enough bats that he could command a big league deal, but the $5MM difference between his $7MM salary and the $2MM buyout is probably too hefty for the team’s liking.

• Phil Maton (32)

Maton scuffled early in the year after signing a late free agent deal with the Rays. The Mets landed him in early July. He has turned things around in Queens, working to a 2.51 ERA with a near-27% strikeout rate in 28 2/3 innings down the stretch. The Mets can keep Maton for $7.75MM or buy him out for $250K. Considering how well he pitched down the stretch, they’ll likely bring him back.

• Lou Trivino (33)

The Yankees hold a $5MM option on Trivino. They’ll decline it. Trivino was rehabbing 2023 Tommy John surgery and battled elbow and shoulder issues this year. It was a lost season that could lead him to take a minor league contract this time around.

• Luke Weaver (31)

Weaver struggled between 2020-23, yet the Yankees signed him to a big league deal in January. The move was met with plenty of skepticism but has worked out brilliantly. Weaver has provided the Yanks 84 innings of 2.89 ERA ball while fanning more than 31% of batters faced. He goes into October having taken the closer role from Holmes. A $2.5MM club option for next season only sweetens the deal. This is easily getting picked up.

Player Options

• Nick Martinez (34)

Martinez has a $12MM option for next season. He has indicated he’s uncertain on his opt-out decision, but it’d be very surprising if he didn’t retest the market. He continued to thrive in a swing role for the Reds, working to a 3.10 ERA over 142 1/3 innings. Martinez started 16 of 42 outings. He should land another multi-year deal with a realistic shot at three years and more than $30MM. Neither the Padres nor the Reds gave Martinez an Opening Day rotation spot, but he could find that opportunity somewhere this offseason.

• Emilio Pagán (34)

Pagán has a similarly easy call as his Cincinnati teammate, albeit in the opposite direction. He’ll almost certainly exercise his $8MM option to stay with the Reds. Pagán posted a 4.50 ERA over 38 innings around a midseason lat injury. He had strong strikeout and walk numbers but issued a few too many home runs (1.42 HR/9) — essentially the story of his entire career.

• Chris Stratton (34)

Stratton has a $4.5MM player option on the second season of his two-year deal with Kansas City. He’ll be taking it after struggling to a 5.55 ERA with a 17.1% strikeout percentage during his first season.