The Saves Market in August: Mets Committee, Weaver in Pittsburgh, Garcia in Arizona

Saves are the category most likely to decide a fantasy baseball title in September, and the ninth inning has turned over in at least three bullpens since the August 3 trade deadline. The Mets lost Devin Williams to a shoulder strain, the Pirates imported a closer without formally naming one, and Arizona has quietly handed the job to a rookie. All three situations are live on waiver wires in leagues where managers stopped paying attention in July.

Here is where the saves actually are, and where they are about to be.

New York: a committee with a starter in it

The Mets placed Devin Williams on the 15-day injured list with a right shoulder strain, with the club indicating it does not believe the stint will be long term. Williams had missed time shortly before that with what was described as right arm fatigue, which is the detail that should temper any optimism. Arm fatigue followed by a shoulder strain is a sequence that frequently extends past the minimum.

What has replaced him is genuinely unusual. Kodai Senga recorded a save on August 10, the first of his career, and Daniel Duarte has picked up work in the ninth as well, with Nate Lavender also getting opportunities. A rotation-caliber arm closing games is not a long-term plan, but it is a signal that the club does not have an obvious internal answer.

The fantasy guidance: do not spend heavily here. Committees where the highest-leverage arm is a converted starter tend to produce two or three saves spread across four pitchers, which is worse than useless in a weekly lineup. If you have a free bench spot in a deep league, Duarte is the cheapest speculative hold. In a 12-team league, leave this one alone and revisit when Williams is activated.

Pittsburgh: Weaver has the job in everything but name

The Pirates acquired Luke Weaver from the Mets at the deadline, sending 21-year-old shortstop prospect Sammy Stafura to New York. Weaver arrived with a 1.84 ERA, a 0.82 WHIP, one save and a 45-to-11 strikeout-to-walk ratio in 44 innings, which is a closer's line regardless of the role he occupied.

Pittsburgh has not formally named him the closer, and the reporting points toward a committee that also includes Gregory Soto and Mason Montgomery. That framing is doing more work than the actual usage will. Weaver is the best reliever in the bullpen by a wide margin, and clubs that trade a legitimate shortstop prospect for a reliever in August do so because they intend to use him in the ninth.

The fantasy guidance: Weaver is the highest-priority add of the three situations. He should be rostered in every league that counts saves. The caveat is opportunity volume: Pittsburgh does not generate a large number of save chances, so Weaver is a ratio-and-strikeout asset who happens to accumulate saves rather than a volume closer. That is still worth a top waiver claim in a tight category race.

Arizona: Brandyn Garcia has the runway

The Diamondbacks removed Paul Sewald from the closer role at the end of July, and left-hander Brandyn Garcia has handled the save chances since. The rookie's line supports it: a 2.03 ERA, a 0.77 WHIP and roughly 10.5 strikeouts per nine.

What makes this the most stable of the three situations is what is behind him. Sewald's ERA has climbed above 6.00, and Arizona did not acquire a reliever at the deadline. There is no obvious alternative on the roster and no external candidate arriving. A rookie pitching well with nobody behind him is the cleanest path to a two-month run of save opportunities that exists in August.

The fantasy guidance: Garcia should be rostered in all leagues with save categories. If he is still available in your league, he is the single best free addition on this list, because the role is more secure than his name recognition suggests.

The rest of the churn

Several other bullpens have settled since the deadline. Marlins, Angels and Phillies pens have each landed on new ninth-inning arms following deadline moves, and those roles are more established now than they were three weeks ago. If you drafted a closer in March and he is still closing, you have had a quiet year, and you are in the minority.

The structural point for managers who are new to chasing saves: role changes cluster in the two weeks after the deadline and again in the last week of August, when clubs that have fallen out of contention start protecting arms and auditioning younger relievers. That second wave is coming, and it is the last free saves of the season.

The Verdexed model take

Our bullpen model projects save opportunities as a function of team win probability distribution rather than raw team quality, which is why it consistently values relievers on mediocre clubs that play close games above relievers on bad clubs that lose by five.

By that measure, Garcia projects for the most remaining save opportunities of the three, because Arizona plays a higher share of one-run and two-run games than Pittsburgh does. Weaver projects for the best ratios and the fewest chances. The Mets committee projects for scattered, unpredictable volume that no single arm captures.

If you can only add one, the model says Garcia for volume and Weaver for ratios, and the tiebreaker is your league's categories. In a rotisserie league where you are chasing saves specifically, take Garcia. In a points league or a head-to-head format that rewards ERA and WHIP, take Weaver.

What to do this week

Spend your top waiver claim on Garcia if he is available and you need saves. Spend it on Weaver if you need ratios more than volume. Ignore the Mets situation unless you are in a 15-team league with deep benches.

And set a reminder for the final week of August. Non-contenders shutting down veteran relievers is the most reliable source of free saves in the fantasy calendar, and the managers who claim those arms before the changes are announced are the ones who win the category.