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INJURY ALERT Out | Shoulder | Since Sep 1, 2026
Tyron Guerrero

Tyron Guerrero

RP • Boston Red Sox Proj Rank N/A Actual N/A N/A • Trade Value
IP ERA W-L HLD SV K/BB K/9 WHIP FSP
34.0 3.71 1-1 18 0 36/7 9.5 1.29 2.33
Compared to same point last season
0.0nan0-000/NANnan

Tyron Guerrero | Fantasy Outlook

Tyron Guerrero sidelined with shoulder inflammation as regular season winds down

Guerrero landed on the 15-day injured list on September 1 due to right shoulder inflammation, putting a halt to a difficult stretch where he logged an 8.40 ERA and a 2.13 WHIP across his previous nine appearances. His absence removes an experienced arm from Boston's bullpen depth as the third-place Red Sox (80-67) attempt to break a two-game slide and cement their American League wild-card positioning.

The late-summer struggles were a stark contrast to his broader 2026 body of work, where he maintained a solid 3.87 ERA and punched out 36 batters over 32.2 innings. Our models indicate that the recent command issues and inflated ratios were likely aggravated by the shoulder ailment rather than a true baseline regression, though his lack of high-leverage closing opportunities limits his ceiling.

Boston continues its homestand with three weekend games against Kansas City, but Guerrero will remain completely unavailable while rehabbing his shoulder. With the fantasy playoffs underway and no firm timetable established for his activation, there is no reason to hold him on active rosters. Sit.

Updated 2 days ago

Tyron Guerrero Fantasy

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DATE OPP INN PC K WLK ER DEC ERA WHIP PTS
08/31 SEA 0.1 13 0 1 3 N/A 2.65 1.15 -4
08/29 @NYY 1.0 18 0 0 0 HOLD 1.87 1.04 2
08/28 @NYY 1.0 6 1 0 0 N/A 1.93 1.04 3
08/25 @MIA 1.2 26 0 1 0 N/A 1.99 1.07 2
08/23 SF 1.0 11 0 0 0 HOLD 2.10 1.03 2
08/19 ARI 1.0 9 0 0 0 N/A 2.17 1.03 2
08/18 ARI 1.2 19 1 0 0 HOLD 2.25 1.07 3
08/12 @TOR 0.0 20 0 2 4 LOSS 2.39 1.06 -12
08/11 @TOR 1.0 9 1 0 0 N/A 2.39 1.06 3
08/09 ATH 1.0 15 1 0 0 HOLD 2.49 1.11 3
08/06 CHW 1.0 9 1 0 0 N/A 2.59 1.15 3
08/05 CHW 1.0 7 1 0 0 HOLD 2.70 1.20 3
08/02 @LAD 1.0 23 1 0 1 HOLD 2.82 1.25 1
08/01 @LAD 1.0 11 0 0 0 HOLD 2.53 1.22 2
07/29 @ATH 1.0 11 1 0 0 N/A 2.66 1.23 3
07/26 TOR 1.0 16 0 1 0 HOLD 2.79 1.29 1
07/24 TOR 1.1 13 1 0 0 N/A 2.95 1.25 4
07/20 BAL 1.1 19 3 0 1 N/A 3.18 1.35 4
07/17 TB 1.0 13 1 0 0 HOLD 2.50 1.17 3
07/10 @NYM 1.0 19 0 0 0 HOLD 2.65 1.18 1
07/09 @CHW 1.2 19 1 0 0 WIN 2.81 1.13 8
07/05 @LAA 2.0 26 1 1 0 HOLD 3.14 1.12 5
06/29 WAS 1.0 15 2 0 0 HOLD 3.65 1.22 4
06/28 NYY 0.2 9 0 0 0 HOLD 3.97 1.24 1
06/24 @COL 0.2 25 1 0 0 HOLD 4.22 1.31 1
06/22 @COL 1.0 8 0 0 0 HOLD 4.50 1.20 2
06/20 @SEA 1.0 14 2 0 0 N/A 5.00 1.33 4
06/17 TOR 1.2 18 3 0 0 N/A 5.63 1.50 6
06/13 TEX 0.1 18 1 0 1 HOLD 7.11 1.74 -0
06/12 TEX 1.0 12 0 0 0 N/A 6.00 1.50 2
06/08 @TB 1.1 16 2 0 0 N/A 7.20 1.80 4
06/07 @NYY 0.2 10 1 0 0 N/A 6.00 1.33 2
05/31 @CLE 0.2 15 1 0 0 N/A 6.75 1.50 2
05/30 @CLE 0.2 7 1 0 0 HOLD 7.72 1.50 2
05/28 ATL 0.1 8 0 0 0 N/A 9.00 1.50 0
05/26 ATL 2.0 36 4 0 2 N/A 9.82 1.36 5
05/24 MIN 0.2 14 2 0 2 HOLD 10.80 1.80 0
05/22 MIN 1.0 16 1 1 0 N/A 0.00 1.00 3
Totals: 34.057336714 77
Fantasy Chart Loading...
YEAR TM APP INN PC K WLK SV W-L ERA WHIP K/9 PTS
2026 BOS 38 34.0 573 36 7 0 1-1 3.71 1.29 9.5 77
ON PACE 41 38 627 39 7 0 1-1 3.71 1.29 9.5 84
3-YEAR AVG 0 0 0 0 0 0 0-0 NAN NAN NAN 0
Career 38 34.0 573 36 7 0 0-0 3.71 1.29 9.5

Guerrero Projection

View All
ERA WHIP SAVES HOLDS WINS SO K/BB K/9 SVHD IP LOSSES PC FPTS
5.787 1.672 0 1.2 0 1.2 1.8 4.8 1.2 2.1 0.1 36.7 0
ERA WHIP SAVES HOLDS WINS SO K/BB K/9 SVHD IP LOSSES PC FPTS
2.026 0.6 0 0.5 0 0.5 1.8 4.8 0.5 2.2 0 14.7 0
Not available due to injury or suspension.
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OWN START TRENDS

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Depth Chart

Boston Red Sox

Roster Breakdown
NAME OWN START
Adley Rutschman 66% 47%
Mickey Gasper 30% 26%
Connor Wong 1% 0%
NAME OWN START
Willson Contreras 86% 20%
Caleb Durbin 55% 43%
Curtis Mead 20% 1%
Triston Casas 1% 0%
Romy Gonzalez 1% 0%
NAME OWN START
Trevor Story 28% 16%
Nick Sogard 25% 21%
Andruw Monasterio 12% 9%
Franklin Arias 10% 0%
Isiah Kiner-Falefa 2% 1%
Anthony Seigler 2% 1%
Kristian Campbell 2% 0%
NAME OWN START
Wilyer Abreu 93% 81%
Roman Anthony 88% 64%
Ceddanne Rafaela 86% 25%
Jarren Duran 74% 59%
Masataka Yoshida 3% 0%
NAME OWN START
Sonny Gray 100% 83%
Payton Tolle 94% 57%
Ranger Suarez 85% 61%
Garrett Crochet 77% 10%
Jake Bennett 60% 33%
Brayan Bello 9% 6%
Patrick Sandoval 8% 6%
Tanner Houck 1% 0%
NAME OWN START
Aroldis Chapman 98% 97%
Garrett Whitlock 40% 35%
Erik Miller 6% 6%
Tyron Guerrero 3% 0%
Justin Slaten 1% 1%

Team Rankings

AVG
.248
9th
R
654
18th
HR
154
23rd
RBI
625
18th
SB
100
13th
OBP
.322
8th
SLG
.404
13th
OPS
.726
9th
W
80
8th
SV
41
12th
ERA
3.62
4th
WHIP
1.24
6th
QS
59
6th
TeamW-LWin %GBRSRA
RaysRays88-59.599-665607
YankeesYankees85-62.5783673540
Red SoxRed Sox80-68.5418.5654573
Blue JaysBlue Jays73-75.49315.5593635
OriolesOrioles72-76.48616.5668692

Team Stats

PlayerGPABRHHRRBISBAVGO/S
Adley Rutschman87318407512560.236  
Mickey Gasper5516624449230.265  
Connor Wong7220122474243.234  
PlayerGPABRHHRRBISBAVGO/S
Willson Contreras1254346611926793.274  
Romy Gonzalez1965712171.185  
PlayerGPABRHHRRBISBAVGO/S
Nick Sogard5218826494160.261  
Anthony Seigler4814821373132.250  
Marcelo Mayer7020519453223.220  
Isiah Kiner-Falefa5513820372168.268  
PlayerGPABRHHRRBISBAVGO/S
Curtis Mead88285497217486.253  
Caleb Durbin14046868116126217.248  
PlayerGPABRHHRRBISBAVGO/S
Andruw Monasterio9929535716404.241  
Trevor Story5221020493234.233  
Tsung-Che Cheng1439710050.256  
PlayerGPABRHHRRBISBAVGO/S
Wilyer Abreu1445487914124728.257  
Jarren Duran13852265108206919.207  
Ceddanne Rafaela13553567151167017.282  
Eli White9619127476295.246  
Masataka Yoshida8726334725282.274  
Roman Anthony421621938492.235  
Nate Eaton153635162.139  
PlayerGPABRHHRRBISBAVGO/S
Jahmai Jones8413418295153.216  
PlayerGPWLSVIPSOERAWHIPO/S
Payton Tolle24960137.01593.151.08  
Sonny Gray271750156.21402.761.17  
Ranger Suárez25640130.21223.441.22  
Connelly Early1775091.2933.441.26  
Jake Bennett18970105.0833.691.07  
Brayan Bello23671102.2774.821.45  
Patrick Sandoval1115055.0574.581.76  
Garrett Crochet633030.0376.301.47  
Eduardo Rivera401010.0106.301.40  
Johan Oviedo10003.239.821.91  
Jedixson Paez40106.2318.902.85  
Tyler Uberstine10102.223.381.50  
PlayerGPWLSVIPSOERAWHIPO/S
Aroldis Chapman50343348.2652.031.13  
Erik Miller5240447.0702.111.28  
Garrett Whitlock4961348.0541.880.83  
Greg Weissert5932155.0563.601.29  
Raymond Burgos600116.1125.510.98  
Alec Gamboa1710128.0201.291.00  
Danny Coulombe2902022.0104.501.50  
Tyron Guerrero3812038.2363.261.14  
Jack Anderson10003.043.000.67  
Zack Kelly1702016.1143.311.29  
Tommy Kahnle80009.058.002.00  
Justin Slaten3624031.1394.601.37  
Seth Martinez10001.019.002.00  
Tyler Samaniego2003020.1172.661.48  
Wyatt Olds1010013.0171.391.08  
Jovani Morán4723062.0683.341.15  
Joe La Sorsa10000.1127.003.00  

Owned Breakdown

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Schedule

DATE OPP SCORE MATCHUP
09-07 LAAW 5-2Brayan Bello
Grayson Rodriguez
09-08 LAAL 1-6Patrick Sandoval
Reid Detmers
09-09 LAAL 4-6Jake Bennett
Ryan Johnson
09-11 KCL 2-3Sonny Gray
Seth Lugo
09-12 KC04:10 EDTRanger Suarez
Randy Dobnak
09-13 KC01:35 EDTPayton Tolle
Noah Cameron

Player Timeline

No major events to mention.

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Waiver Trends

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A.J. Ewing NYM CF +6.5
Andrew Alvarez WAS SP +6.4
Cesar Perdomo SF SP +5.3
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Connor Prielipp MIN SP +3.5
Tyler Mahle ATL SP +3.4
Carlos Rodon NYY SP +3.0
Travis Bazzana CLE 2B +3.0
Freddy Peralta TB SP +2.7
Josue De Paula LAD CF +2.7
Cal Quantrill TEX SP +2.5
Brayan Rocchio CLE SS +2.4
Spencer Arrighetti TOR SP +2.4
Bryce Eldridge SF 1B +2.4
Braxton Ashcraft PIT SP -5.4
Byron Buxton MIN CF -4.3
Tristan Peters CHW CF -3.9
Grant Taylor CHW RP -3.2
Martin Perez ATL SP -3.0
Zebby Matthews MIN SP -3.0
Jake Burger TEX 1B -2.9
Brandon Marsh PHI LF -2.9
Robbie Ray SD SP -2.8
Anthony Molina SF RP -2.7
Alec Bohm PHI 3B -2.5
Troy Melton DET SP -2.5
Michael Petersen MIA RP -2.3
Jazz Chisholm Jr. NYY 2B -2.3
Roman Anthony BOS LF -2.3