Anthony Seigler
INF · S/S · age 27.2 · BOSOCTOBER OK
10-DAY IL (Wrist inflammation)
0+090
1+015 / 1+028
2 (using one in 2026)
2 of 5
PRE-ARBITRATION / AUTO-RENEWAL
Trade (MIL) Feb'26
0 / 0
none listed
Next 90 days, by the model
90%
1%
8%
1%
<1%
Pushing the cut risk around: age (27.24) raises it, last season's WAR (-0.18) raises it, this season's OPS (0.73) lowers it.
Context the model does not weigh: ZiPS projects -0.0 WAR, 0.4 WAR this season; 15 OF on the 40-man, of whom Isiah Kiner-Falefa is headed to free agency.
Trained on every 40-man roster snapshot since 2011 and what happened in the following 90 days; it sees roster status, options, service, history and last season's line, not this season's performance or the club's intentions. How well it does.
Is there a job for him next year?
BOS returns 15 IF on the 40-man once 1 free agent leaves; about 8 IF jobs survive a normal winter. By his own recent record he ranks 10th among the returners (0.5 WAR against a bar of 0.6), which the calibrated model turns into 93% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 15th (0.0 WAR, bar 0.7), worth 93% kept on the same model.
| By recent record: returning IF | Proj. WAR |
|---|---|
| 1. Willson Contreras | 3.5 |
| 2. Caleb Durbin | 2.8 |
| 3. Nick Sogard | 1.7 |
| 4. Trevor Story | 1.7 |
| 5. Curtis Mead | 1.3 |
| 6. Romy Gonzalez | 1.1 |
| 7. Nathan Eaton | 1.0 |
| 8. Mickey Gasperlast job | 0.6 |
| 9. Masataka Yoshida | 0.6 |
| 10. Anthony Seigler | 0.5 |
| 11. Andruw Monasterio | -0.1 |
| 12. Tsung-Che Cheng | -0.2 |
| By ZiPS / Steamer: returning IF | Proj. WAR |
|---|---|
| 1. Caleb Durbin | 2.4 |
| 2. Trevor Story | 2.0 |
| 3. Willson Contreras | 1.7 |
| 4. Kristian Campbell | 0.9 |
| 5. Nathan Eaton | 0.8 |
| 6. Romy Gonzalez | 0.8 |
| 7. Mickey Gasper | 0.7 |
| 8. Curtis Meadlast job | 0.7 |
| 9. Andruw Monasterio | 0.7 |
| 10. Masataka Yoshida | 0.6 |
| 11. Triston Casas | 0.6 |
| 12. Nick Sogard | 0.6 |
Departing free agents are excluded; players on club, mutual or player options are counted as returning. The kept probability is calibrated on every September since 2012 using the recent-record projection; the ZiPS/Steamer reading uses the same model with a different ranking, so treat it as a second opinion rather than a calibrated number. Salary enters once arbitration projections publish in October.
October: Post-season eligible
On the 40-man before noon ET Sep 1. He stays eligible as long as he remains on the 40-man or 60-day IL through the post-season; an outright after the cutoff would end automatic eligibility.
The post-season eligibility list is fixed at noon ET on September 1: everyone on the 40-man, the 60-day IL or the military list at that moment, who then stays there without interruption. Attachment 25 (Major League Rule 40)
What happens if the club…
- option him to the minorsBLOCKED
- Not while he is on the injured list. He must be healthy and reinstated first; a rehab assignment (20 days, 30 for pitchers, with his consent) is the only way to send him down injured.
- Injured players cannot be sent down
- designate him for assignment (or put him on outright waivers)
- The club has 7 days to trade him, pass him through outright waivers, or release him; he is paid at the major-league rate and keeps accruing service in the meantime. On outright waivers any club can claim him for $50,000, worst record first, and the claiming club takes his contract. If he clears, the club can outright him to the minors and he has no say; he stays under club control on a minor-league deal. He would then be Rule 5-eligible and would hold XX-D rights against any future outright. Post-season: an outright after the September 1 cutoff ends his automatic eligibility. He could only return as an approved injury replacement, and only if he accepts the outright and stays on a minor-league reserve list in the organization without interruption; a release makes him ineligible for anyone this October. Because he is on the injured list he cannot be outrighted until he is healthy and reinstated, so a DFA now would have to end in a trade or a release.
- Designated for assignment: 7 days · Outright waivers · Article XX-D: the right to walk
- release him
- Release waivers cost a claiming club $1 but the claimant assumes the whole contract, so expensive players clear. The club owes the full unpaid balance of this season's salary, offset by whatever another club pays him this year. A released player is not post-season eligible for any club this year.
- Release waivers and termination pay · Which rate a split contract pays at release
- trade himBLOCKED
- Not now: players on major-league contracts cannot be traded after the Aug 3 deadline until the day after the World Series.
- Trade deadline · 10-and-5 rights · June 15 no-trade for free-agent signees
- renew him for next year
- Pre-arbitration: the club sets his 2027 salary near the minimum ($780,000 floor) and he has no leverage beyond a non-tender.
- Minimum salaries · Tender deadline
What the rules say about him
- Option years and the 20-day rule2 option years left entering 2026; 77 option days this season uses one (1 after 2026).A season with fewer than 20 days on optional assignment does not count as an option year, and those days count as Major League service. 2022-2026 Basic Agreement, Article XIX(E) and XXI(B), p. 98 (the number itself is in Major League Rule 7(c))
- Five optional assignments per seasonOptioned 3 times this season that count toward the cap of 5: 2 left.A player can be optioned at most five times in a season; a sixth trip requires outright waivers. 2022-2026 Basic Agreement, Article XIX(E), p. 98 (the number itself is in Major League Rule 7(c))
- Injured players cannot be sent downOn the Major League injured list: cannot be optioned or outrighted until he is healthy and reinstated, so an injured fringe player keeps his roster spot by default.No assignment to a minor-league club while a player is on a Major League injured list, and an injured player who cannot play cannot be optioned or outrighted. 2022-2026 Basic Agreement, Article XIX(C)(1)-(2), p. 96
- Post-season roster eligibilityOn the 40-man before noon ET Sep 1. He stays eligible as long as he remains on the 40-man or 60-day IL through the post-season; an outright after the cutoff would end automatic eligibility.The post-season eligibility list is fixed at noon ET on September 1: everyone on the 40-man, the 60-day IL or the military list at that moment, who then stays there without interruption. 2022-2026 Basic Agreement, Attachment 25, p. 253 (the number itself is in Major League Rule 40)
- Rule 5 clockOn a 40-man roster (would first be exposed after 2022 otherwise).
Option years, season by season
| Season | Days on option | Option year used | Stints |
|---|---|---|---|
| 2026 | 77 | yes | Apr 10, 2026 to Jun 3, 2026 (54d)Jun 9, 2026 to Jun 20, 2026 (11d)Aug 30, 2026 to Sep 11, 2026 (12d) |
| 2025 | 20 | yes | Sep 9, 2025 to Sep 29, 2025 (20d) |
Transaction log
| Sep 13, 2026 | Status change | Boston Red Sox placed 2B Anthony Seigler on the 10-day injured list. Right wrist inflammation. |
| Sep 11, 2026 | Recalled | Boston Red Sox recalled 2B Anthony Seigler from Worcester Red Sox. |
| Aug 30, 2026 | Optioned | Boston Red Sox optioned 2B Anthony Seigler to Worcester Red Sox. |
| Jun 20, 2026 | Recalled | Boston Red Sox recalled 2B Anthony Seigler from Worcester Red Sox. |
| Jun 9, 2026 | Optioned | Boston Red Sox optioned 2B Anthony Seigler to Worcester Red Sox. |
| Jun 3, 2026 | Recalled | Boston Red Sox recalled 2B Anthony Seigler from Worcester Red Sox. |
| Apr 10, 2026 | Optioned | Boston Red Sox optioned 2B Anthony Seigler to Worcester Red Sox. |
| Apr 10, 2026 | Status change | Boston Red Sox activated 2B Anthony Seigler from the 10-day injured list. |
| Mar 25, 2026 | Status change | Boston Red Sox placed 2B Anthony Seigler on the 10-day injured list retroactive to March 22, 2026. Left knee patellar tendinopathy. |
| Feb 9, 2026 | Traded | Boston Red Sox traded LHP Kyle Harrison, LHP Shane Drohan and 2B David Hamilton to Milwaukee Brewers for 3B Caleb Durbin, SS Andruw Monasterio, 2B Anthony Seigler and Future Considerations. |
| Oct 18, 2025 | Status change | Milwaukee Brewers activated 2B Anthony Seigler. |
| Sep 29, 2025 | Recalled | Milwaukee Brewers recalled 2B Anthony Seigler from Nashville Sounds. |
| Sep 9, 2025 | Optioned | Milwaukee Brewers optioned 2B Anthony Seigler to Nashville Sounds. |
| Jul 1, 2025 | Contract selected | Milwaukee Brewers selected the contract of 2B Anthony Seigler from Nashville Sounds. |
| Nov 19, 2024 | Signed as free agent | Milwaukee Brewers signed free agent 2B Anthony Seigler to a minor league contract. |
| Jun 13, 2018 | Signed | New York Yankees signed C Anthony Seigler. |
Service through 2025 per FanGraphs RosterResource; options and this-season service reconstructed from the MLB transaction log (reconstruction; FanGraphs shows 2). Rule 5 exposure deadline Nov 17, 2026.