Who Should I Trade?

Matt Krook for Welinton Herrera (2026)

Summary
Stats
Projections
News & Notes
Schedule

Who Should I Trade? Player Summaries
	Experts' Pick	Experts' Pick
	Matt Krook RP - WSH	Welinton Herrera RP - COL
Expert Recommendation	0% Recommended by 0 of 0 experts	0% Recommended by 0 of 0 experts
Rankings

Rest of Season	‐	‐
VBR	# 791	‐

Projections

Strikeouts	15	1
Wins	1	0
Saves	0	0
ERA	4.30	7.03
WHIP	1.55	1.56

Misc

Injury Alert	-	IL60

Expert Ranks

Who Should I Trade? Player Statistics
	Matt Krook RP - WSH	Welinton Herrera RP - COL
2026 Stats


Games Played	10	3

Games Started	0	0

Innings Pitched	8.1	2.1

Wins	0	0

Losses	1	0

Saves	0	0

Blown Saves	2	0

Holds	2	0

Hits Allowed	10	2

Earned Runs	9	0

Home Runs Allowed	2	0

Strikeouts	9	2

Walks	7	1

ERA	9.72	0.00

WHIP	2.04	1.29

Who Should I Trade? Player Projections
	Matt Krook RP - WSH	Welinton Herrera RP - COL
2026 Projections


Games Played	19	1

Games Started	0	0

Innings Pitched	15.1	0.6

Wins	1	0

Losses	1	0

Saves	0	0

Blown Saves	0	0

Holds	2	0

Hits Allowed	14	1

Earned Runs	7	1

Home Runs Allowed	2	0

Strikeouts	15	1

Walks	8	1

ERA	4.30	7.03

WHIP	1.55	1.56

Who Should I Trade? Player Notes
	Matt Krook RP - WSH	Welinton Herrera RP - COL
News
	The Nationals are expected to activate Matt Krook on Monday. Ari Koslow Mon, Jul 6th	Welinton Herrera will undergo season-ending Tommy John surgery. Nicholas Rodriguez Tue, Jun 30th
	The Nationals claimed Matt Krook off waivers from the Athletics. Ari Koslow Sat, Jul 4th	Welinton Herrera is receiving a second opinion on his UCL tear. Nicholas Rodriguez Sat, Jun 6th
	The Athletics designated LHP Matt Krook for assignment. Ari Koslow Fri, Jul 3rd	Welinton Herrera (elbow) has been transferred to the 60-day IL by the Colorado Rockies. The move allows an open spot on the 40-man roster for righthander TJ Shook, who was called up on Monday. David Leisering Mon, Jun 1st
	The Athletics selected the contract of LHP Matt Krook from Triple-A Las Vegas. Ari Koslow Sun, Jun 21st	The Rockies placed Welinton Herrera on the 15-day injured list with left elbow inflammation. Ari Koslow Sat, May 30th
		The Rockies recalled LHP Welinton Herrera from Triple-A Albuquerque. Ari Koslow Mon, May 25th
Notes
There are no recent notes for these players

Who Should I Trade? Player Schedules
Date	Opp	Opp Pitcher	VBR	Opp	Opp Pitcher	VBR
	Matt Krook RP - WSH			Welinton Herrera RP - COL
Thu, Mar 26th	@ CHC	Matthew Boyd (6-1)	#36
Sat, Mar 28th	@ CHC	Cade Horton (1-0)		@ MIA	Eury Perez (5-7)	#42
Sun, Mar 29th	@ CHC	Shota Imanaga (6-8)	#27	@ MIA	Max Meyer (9-1)	#82
Mon, Mar 30th	@ PHI	Taijuan Walker (1-4)		@ TOR	Cody Ponce (0-0)
Tue, Mar 31st	@ PHI	Andrew Painter (1-8)	#247	@ TOR	Max Scherzer (1-4)	#155
Wed, Apr 1st	@ PHI	Cristopher Sanchez (12-4)	#4	@ TOR	Kevin Gausman (4-9)	#23
Fri, Apr 3rd	vs LAD	Emmet Sheehan (4-7)	#37	vs PHI	Aaron Nola (3-8)	#51
Sat, Apr 4th	vs LAD	Tyler Glasnow (3-0)	#76	vs PHI	Jesus Luzardo (9-4)	#9
Sun, Apr 5th	vs LAD	Roki Sasaki (3-5)	#110	vs PHI	Taijuan Walker (1-4)
Mon, Apr 6th	vs STL	Andre Pallante (10-6)	#134	vs HOU	Cody Bolton (0-1)	#320
Tue, Apr 7th	vs STL	Matthew Liberatore (5-7)	#117	vs HOU	Mike Burrows (4-9)	#232
Wed, Apr 8th	vs STL	Michael McGreevy (4-7)	#88	vs HOU	Cristian Javier (0-1)	#204
Fri, Apr 10th	@ MIL	Aaron Ashby		@ SD	Walker Buehler (6-5)	#182
Sat, Apr 11th	@ MIL	Kyle Harrison (8-2)	#53	@ SD	German Marquez (4-2)	#360
Sun, Apr 12th	@ MIL	Brandon Woodruff (2-2)		@ SD	Nick Pivetta (1-2)	#95
Mon, Apr 13th	@ PIT	Paul Skenes (9-8)	#3
Tue, Apr 14th	@ PIT	Mitch Keller (6-7)	#115	@ HOU	Colton Gordon (0-0)	#239
Wed, Apr 15th	@ PIT	Mason Montgomery (3-3)	#113	@ HOU	Spencer Arrighetti (7-5)	#153
Thu, Apr 16th	@ PIT	Braxton Ashcraft (9-4)	#26	@ HOU	Ryan Weiss (0-3)	#395
Fri, Apr 17th	vs SF	Logan Webb (5-7)	#14	vs LAD	Tyler Glasnow (3-0)	#76
Sat, Apr 18th	vs SF	Adrian Houser (2-7)	#214	vs LAD	Emmet Sheehan (4-7)	#37
Sun, Apr 19th	vs SF	Robbie Ray (8-6)	#84	vs LAD	Roki Sasaki (3-5)	#110
Mon, Apr 20th	vs ATL	Bryce Elder (6-6)	#146	vs LAD	Justin Wrobleski (11-2)	#75
Tue, Apr 21st	vs ATL	Reynaldo Lopez (4-3)	#90	vs SD	Randy Vasquez (6-6)	#255
Wed, Apr 22nd	vs ATL	Didier Fuentes (4-0)	#122	vs SD	Walker Buehler (6-5)	#182
Thu, Apr 23rd	vs ATL	JR Ritchie (1-2)	#291	vs SD	Matt Waldron (1-2)	#275
Fri, Apr 24th	@ CWS	Bryan Hudson (3-2)	#175	@ NYM	Freddy Peralta (5-9)	#43
Sat, Apr 25th	@ CWS	Noah Schultz (3-7)	#230
Sun, Apr 26th	@ CWS	Bryan Hudson (3-2)	#175	@ NYM	Kodai Senga (0-7)	#199
Tue, Apr 28th	@ NYM	Clay Holmes (4-4)	#101	@ CIN	Chase Burns (12-1)	#22
Wed, Apr 29th	@ NYM	David Peterson (5-7)	#78	@ CIN	Brandon Williamson (2-3)	#418
Thu, Apr 30th	@ NYM	Freddy Peralta (5-9)	#43	@ CIN	Andrew Abbott (5-6)	#108
Fri, May 1st	vs MIL	Jacob Misiorowski (10-4)	#10	vs ATL	Grant Holmes (6-4)	#150
Sat, May 2nd	vs MIL	Kyle Harrison (8-2)	#53	vs ATL	Chris Sale (10-6)	#6
Sun, May 3rd	vs MIL	Logan Henderson (4-1)	#56	vs ATL	Spencer Strider (4-2)	#202
Tue, May 5th	vs MIN	Taj Bradley (9-4)	#46
Wed, May 6th	vs MIN	Bailey Ober (7-3)	#89	vs NYM	Freddy Peralta (5-9)	#43
Thu, May 7th	vs MIN	Simeon Woods Richardson (1-7)	#354	vs NYM	Christian Scott (3-2)	#60
Fri, May 8th	@ MIA	Robby Snelling (0-1)		@ PHI	Jesus Luzardo (9-4)	#9
Sat, May 9th	@ MIA	Janson Junk (4-6)	#121	@ PHI	Aaron Nola (3-8)	#51
Sun, May 10th	@ MIA	Sandy Alcantara (10-6)	#54	@ PHI	Cristopher Sanchez (12-4)	#4
Tue, May 12th	@ CIN	Brady Singer (5-9)	#152	@ PIT	Paul Skenes (9-8)	#3
Wed, May 13th	@ CIN	Nick Lodolo (3-2)	#102	@ PIT	Mitch Keller (6-7)	#115
Thu, May 14th	@ CIN	Chase Burns (12-1)	#22	@ PIT	Mason Montgomery (3-3)	#113
Fri, May 15th	vs BAL	Shane Baz (4-9)	#63	vs ARI	Merrill Kelly (8-8)	#112
Sat, May 16th	vs BAL	Chris Bassitt (4-4)	#271	vs ARI	Eduardo Rodriguez (8-3)	#114
Sun, May 17th	vs BAL	Brandon Young (8-2)	#132	vs ARI	Michael Soroka (8-3)	#70
Mon, May 18th	vs NYM	Christian Scott (3-2)	#60	vs TEX	MacKenzie Gore (6-8)	#34
Tue, May 19th	vs NYM	Nolan McLean (7-6)	#31	vs TEX	Tyler Alexander (1-1)	#184
Wed, May 20th	vs NYM	Zac Thornton (1-1)	#160	vs TEX	Jack Leiter (3-7)	#135
Thu, May 21st	vs NYM	David Peterson (5-7)	#78	@ ARI	Eduardo Rodriguez (8-3)	#114
Fri, May 22nd	@ ATL	Bryce Elder (6-6)	#146	@ ARI	Michael Soroka (8-3)	#70
Sat, May 23rd	@ ATL	Grant Holmes (6-4)	#150	@ ARI	Zac Gallen (3-9)	#171
Sun, May 24th	@ ATL	Martin Perez (6-6)	#174	@ ARI	Ryne Nelson (3-5)	#198
Mon, May 25th	@ CLE	Tanner Bibee (4-9)	#48	@ LAD	Emmet Sheehan (4-7)	#37
Tue, May 26th	@ CLE	Joey Cantillo (8-5)	#77	@ LAD	Eric Lauer (5-5)	#287
Wed, May 27th	@ CLE	Gavin Williams (10-5)	#25	@ LAD	Shohei Ohtani (8-2)	#1
Fri, May 29th	vs SD	Lucas Giolito (2-3)	#338	vs SF	Logan Webb (5-7)	#14
Sat, May 30th	vs SD	Michael King (6-7)	#50	vs SF	Adrian Houser (2-7)	#214
Sun, May 31st	vs SD	Griffin Canning (1-8)	#165	vs SF	Robbie Ray (8-6)	#84
Mon, Jun 1st	vs MIA	Sandy Alcantara (10-6)	#54	@ LAA	Jose Soriano (8-6)	#45
Tue, Jun 2nd	vs MIA	Lake Bachar (1-1)	#188	@ LAA	Grayson Rodriguez (3-3)	#109
Wed, Jun 3rd	vs MIA	Max Meyer (9-1)	#82	@ LAA	Walbert Urena (6-7)	#243
Fri, Jun 5th	@ ARI	Merrill Kelly (8-8)	#112	vs MIL	Brandon Sproat (3-5)	#130
Sat, Jun 6th	@ ARI	Eduardo Rodriguez (8-3)	#114	vs MIL	Jacob Misiorowski (10-4)	#10
Sun, Jun 7th	@ ARI	Michael Soroka (8-3)	#70	vs MIL	Shane Drohan (5-3)	#81
Mon, Jun 8th	@ SF	Logan Webb (5-7)	#14
Tue, Jun 9th	@ SF	Adrian Houser (2-7)	#214	vs CHC	Colin Rea (7-7)	#193
Wed, Jun 10th	@ SF	Robbie Ray (8-6)	#84	vs CHC	Shota Imanaga (6-8)	#27
Fri, Jun 12th	vs SEA	Bryce Miller (4-4)	#38	@ ATH	Gage Jump (3-6)	#92
Sat, Jun 13th	vs SEA	Luis Castillo (3-9)	#67	@ ATH	Joey Estes (0-0)	#423
Sun, Jun 14th	vs SEA	Emerson Hancock (6-4)	#94	@ ATH	Jeffrey Springs (3-9)	#190
Mon, Jun 15th	vs KC	Mitch Spence (0-2)	#322	@ CHC	Shota Imanaga (6-8)	#27
Tue, Jun 16th	vs KC	Michael Wacha (5-7)	#69	@ CHC	Edward Cabrera (5-4)	#97
Wed, Jun 17th	vs KC	Luinder Avila (5-3)	#274	@ CHC	Javier Assad (6-1)	#234
Fri, Jun 19th	@ TB	Griffin Jax (6-7)	#57	vs PIT	Bubba Chandler (3-8)	#124
Sat, Jun 20th	@ TB	Ian Seymour (6-2)	#73	vs PIT	Paul Skenes (9-8)	#3
Sun, Jun 21st	@ TB	Nick Martinez (9-2)	#106	vs PIT	Jared Jones (2-1)	#47
Mon, Jun 22nd	vs PHI	Tim Mayza (2-3)	#169	vs BOS	Jake Bennett (6-3)	#100
Tue, Jun 23rd	vs PHI	Jesus Luzardo (9-4)	#9	vs BOS	Sonny Gray (12-1)	#28
Wed, Jun 24th	vs PHI	Aaron Nola (3-8)	#51	vs BOS	Ranger Suarez (4-3)	#30
Thu, Jun 25th	vs PHI	Cristopher Sanchez (12-4)	#4
Fri, Jun 26th	@ BAL	Trevor Rogers (6-7)	#68	@ MIN	Taj Bradley (9-4)	#46
Sat, Jun 27th	@ BAL	Brandon Young (8-2)	#132	@ MIN	Mike Paredes (0-3)	#312
Sun, Jun 28th	@ BAL	Kyle Bradish (7-9)	#40	@ MIN	Connor Prielipp (2-5)	#120
Mon, Jun 29th	@ BOS	Ranger Suarez (4-3)	#30	vs MIA	Sandy Alcantara (10-6)	#54
Tue, Jun 30th	@ BOS	Connelly Early (7-5)	#137	vs MIA	Eury Perez (5-7)	#42
Wed, Jul 1st	@ BOS	Payton Tolle (5-6)	#55	vs MIA	Max Meyer (9-1)	#82
Fri, Jul 3rd	vs PIT	Mitch Keller (6-7)	#115	vs SF	Logan Webb (5-7)	#14
Sat, Jul 4th	vs PIT	Braxton Ashcraft (9-4)	#26	vs SF	Robbie Ray (8-6)	#84
Sun, Jul 5th	vs PIT	Bubba Chandler (3-8)	#124	vs SF	Tyler Mahle (2-9)	#85
Mon, Jul 6th	vs HOU	Mike Burrows (4-9)	#232	@ LAD	Eric Lauer (5-5)	#287
Tue, Jul 7th	vs HOU	Tatsuya Imai (6-4)	#128	@ LAD	Justin Wrobleski (11-2)	#75
Wed, Jul 8th	vs HOU	Spencer Arrighetti (7-5)	#153	@ LAD	Roki Sasaki (3-5)	#110
Fri, Jul 10th	vs NYY	Ryan Weathers (3-7)	#58	@ SF	Robbie Ray (8-6)	#84
Sat, Jul 11th	vs NYY	Cam Schlittler (9-6)	#20	@ SF	Tyler Mahle (2-9)	#85
Sun, Jul 12th	vs NYY	Will Warren (7-4)	#62	@ SF	Trevor McDonald (3-7)	#242
Fri, Jul 17th	@ ATH	Gage Jump (3-6)	#92	vs CIN	Brady Singer (5-9)	#152
Sat, Jul 18th	@ ATH	J.T. Ginn (8-6)	#144	vs CIN	Rhett Lowder (3-7)	#209
Sun, Jul 19th	@ ATH	Jacob Lopez (4-4)	#238	vs CIN	Hunter Greene (2-1)	#18
Mon, Jul 20th	@ COL	Kyle Freeland (2-9)	#268	vs WSH	Andrew Alvarez (2-3)	#151
Tue, Jul 21st	@ COL	Michael Lorenzen (3-9)	#425	vs WSH	Carson Palmquist (0-1)	#296
Wed, Jul 22nd	@ COL	Gabriel Hughes (0-2)	#260	vs WSH	Cade Cavalli (7-4)	#61
Fri, Jul 24th	vs ARI	Eduardo Rodriguez (8-3)	#114	@ MIL	Shane Drohan (5-3)	#81
Sat, Jul 25th	vs ARI	Mitch Bratt (0-0)	#189	@ MIL	Robert Gasser (2-4)	#133
Sun, Jul 26th	vs ARI	Michael Soroka (8-3)	#70	@ MIL	Jacob Misiorowski (10-4)	#10
Mon, Jul 27th	vs TOR	Max Scherzer (1-4)	#155
Tue, Jul 28th	vs TOR	Shane Bieber (1-1)	#80	@ SD	Michael King (6-7)	#50
Wed, Jul 29th	vs TOR	Trey Yesavage (4-5)	#79	@ SD	Griffin Canning (1-8)	#165
Thu, Jul 30th	@ ATL	Bryce Elder (6-6)	#146
Fri, Jul 31st	@ ATL	Reynaldo Lopez (4-3)	#90	vs KC	Michael Wacha (5-7)	#69
Sat, Aug 1st	@ ATL	Martin Perez (6-6)	#174	vs KC
Sun, Aug 2nd	@ ATL			vs KC
Mon, Aug 3rd	@ PHI			vs TB
Tue, Aug 4th	@ PHI			vs TB
Wed, Aug 5th	@ PHI			vs TB
Thu, Aug 6th	@ PHI
Fri, Aug 7th	vs CIN			@ STL
Sat, Aug 8th	vs CIN			@ STL
Sun, Aug 9th	vs CIN			@ STL
Tue, Aug 11th	vs CHC			@ ARI
Wed, Aug 12th	vs CHC			@ ARI
Thu, Aug 13th	vs CHC
Fri, Aug 14th	@ NYM			@ SF
Sat, Aug 15th	@ NYM			@ SF
Sun, Aug 16th	@ NYM			@ SF
Tue, Aug 18th	@ TEX			vs LAD
Wed, Aug 19th	@ TEX			vs LAD
Thu, Aug 20th	@ TEX
Fri, Aug 21st	@ MIA			vs CLE
Sat, Aug 22nd	@ MIA			vs CLE
Sun, Aug 23rd	@ MIA			vs CLE
Mon, Aug 24th	vs COL			@ WSH
Tue, Aug 25th	vs COL			@ WSH
Wed, Aug 26th	vs COL			@ WSH
Thu, Aug 27th	vs COL			@ WSH
Fri, Aug 28th	vs MIA			@ ATL
Sat, Aug 29th	vs MIA			@ ATL
Sun, Aug 30th	vs MIA			@ ATL
Mon, Aug 31st	vs MIA			vs BAL
Tue, Sep 1st	vs ATL			vs BAL
Wed, Sep 2nd	vs ATL			vs BAL
Fri, Sep 4th	@ LAD			vs STL
Sat, Sep 5th	@ LAD			vs STL
Sun, Sep 6th	@ LAD			vs STL
Mon, Sep 7th	@ SD
Tue, Sep 8th	@ SD			@ NYY
Wed, Sep 9th	@ SD			@ NYY
Fri, Sep 11th	vs LAA			@ DET
Sat, Sep 12th	vs LAA			@ DET
Sun, Sep 13th	vs LAA			@ DET
Tue, Sep 15th	vs PHI			vs SD
Wed, Sep 16th	vs PHI			vs SD
Fri, Sep 18th	@ STL			vs SEA
Sat, Sep 19th	@ STL			vs SEA
Sun, Sep 20th	@ STL			vs SEA
Mon, Sep 21st	@ DET
Tue, Sep 22nd	@ DET			vs ARI
Wed, Sep 23rd	@ DET			vs ARI
Fri, Sep 25th	vs NYM			@ CWS
Sat, Sep 26th	vs NYM			@ CWS
Sun, Sep 27th	vs NYM			@ CWS
Fri, Mar 27th				@ MIA	Sandy Alcantara (10-6)	#54
Thu, Apr 9th				@ SD	Randy Vasquez (6-6)	#255
Mon, May 4th				vs NYM	Huascar Brazoban (4-2)	#187
Thu, Jun 11th				vs CHC	Edward Cabrera (5-4)	#97
Thu, Jul 2nd				vs MIA	Ryan Gusto (0-2)	#226
Thu, Jul 9th				@ SF	Carson Whisenhunt (2-0)	#176
Mon, Aug 10th				@ ARI
Mon, Aug 17th				vs LAD
Thu, Sep 10th				@ NYY
Mon, Sep 14th				vs SD
Thu, Sep 17th				vs SD
Thu, Sep 24th				vs ARI

Who Should I Trade?

Matt Krook for Welinton Herrera (2026)

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