Who Should I Trade?

Cooper Criswell for Isaac Mattson (2026)

Summary
Stats
Projections
News & Notes
Schedule

Who Should I Trade? Player Summaries
	Experts' Pick
	Cooper Criswell RP - SEA	Isaac Mattson RP - PIT
Expert Recommendation	100% Recommended by 2 of 2 experts	0% Recommended by 0 of 2 experts
Rankings

Rest of Season	# 326	# 391
VBR	# 651	# 709

Projections

Strikeouts	11	19
Wins	1	1
Saves	0	0
ERA	4.15	4.29
WHIP	1.35	1.41

Misc

Injury Alert	IL60	-

Expert Ranks

Kelly Kirby FantasyPros	# 295	# 422

Kevin Spinelli KevScores	# 336	# 418

Who Should I Trade? Player Statistics
	Cooper Criswell RP - SEA	Isaac Mattson RP - PIT
2026 Stats


Games Played	26	34

Games Started	0	0

Innings Pitched	30.2	32.2

Wins	2	0

Losses	1	0

Saves	1	0

Blown Saves	1	2

Holds	3	8

Hits Allowed	28	31

Earned Runs	12	15

Home Runs Allowed	3	3

Strikeouts	23	29

Walks	8	14

ERA	3.52	4.13

WHIP	1.17	1.38

Who Should I Trade? Player Projections
	Cooper Criswell RP - SEA	Isaac Mattson RP - PIT
2026 Projections


Games Played	13	24

Games Started	0	0

Innings Pitched	13.9	20.7

Wins	1	1

Losses	1	1

Saves	0	0

Blown Saves	0	0

Holds	1	4

Hits Allowed	14	19

Earned Runs	6	10

Home Runs Allowed	2	3

Strikeouts	11	19

Walks	4	10

ERA	4.15	4.29

WHIP	1.35	1.41

Who Should I Trade? Player Notes
	Cooper Criswell RP - SEA	Isaac Mattson RP - PIT
News
	The Mariners transferred Cooper Criswell to the 60-day injured list. Ari Koslow Fri, Jul 3rd	The Pirates recalled RHP Isaac Mattson from Triple-A Indianapolis. Ari Koslow Sat, Jun 13th
	Mariners GM Justin Hollander said Cooper Criswell will undergo an MRI on July 6. Ari Koslow Tue, Jun 30th	Isaac Mattson has been sent to Triple-A Indianapolis. Nate Miller - FantasyPros Wed, May 20th
	The Mariners expect Cooper Criswell to return in early August. Ari Koslow Thu, Jun 18th	Isaac Mattson pitched a perfect eighth inning on Sunday, including a strikeout, for his fifth hold of the season as the Pirates defeated the Rays, 6-3. David Leisering Sun, Apr 19th
	The Mariners placed RHP Cooper Criswell on the 15-day injured list with a right shoulder strain. Ari Koslow Tue, Jun 9th
	Criswell allowed no runs and only two hits through three inninings, while picking up the save in Seattle's 8-0 win over the Guardians. Robert Finkelstein Sun, Mar 29th
Notes
There are no recent notes for these players

Who Should I Trade? Player Schedules
Date	Opp	Opp Pitcher	VBR	Opp	Opp Pitcher	VBR
	Cooper Criswell RP - SEA			Isaac Mattson RP - PIT
Thu, Mar 26th	vs CLE	Tanner Bibee (4-9)	#51	@ NYM	Freddy Peralta (5-9)	#42
Fri, Mar 27th	vs CLE	Gavin Williams (10-5)	#26
Sat, Mar 28th	vs CLE	Joey Cantillo (8-5)	#74	@ NYM	David Peterson (5-7)	#84
Sun, Mar 29th	vs CLE	Slade Cecconi (4-6)	#104	@ NYM	Nolan McLean (7-6)	#32
Mon, Mar 30th	vs NYY	Ryan Weathers (3-7)	#57	@ CIN	Chase Burns (12-1)	#21
Tue, Mar 31st	vs NYY	Max Fried (4-3)	#24	@ CIN	Brandon Williamson (2-3)	#423
Wed, Apr 1st	vs NYY	Cam Schlittler (9-6)	#22	@ CIN	Andrew Abbott (5-6)	#105
Fri, Apr 3rd	@ LAA	Reid Detmers (3-6)	#43	vs BAL	Kyle Bradish (6-9)	#40
Sat, Apr 4th	@ LAA	Jack Kochanowicz (2-5)		vs BAL	Shane Baz (4-9)	#68
Sun, Apr 5th	@ LAA	George Klassen (0-1)	#326	vs BAL	Chris Bassitt (4-4)	#206
Mon, Apr 6th	@ TEX	Jacob deGrom (7-6)	#8	vs SD	German Marquez (4-2)	#377
Tue, Apr 7th	@ TEX	Nathan Eovaldi (9-8)	#17	vs SD	Nick Pivetta (1-2)	#96
Wed, Apr 8th	@ TEX	MacKenzie Gore (6-8)	#35	vs SD	Michael King (6-7)	#50
Fri, Apr 10th	vs HOU	Tatsuya Imai (6-4)	#129	@ CHC	Shota Imanaga (6-8)	#27
Sat, Apr 11th	vs HOU	Lance McCullers Jr. (2-3)	#198	@ CHC	Edward Cabrera (5-4)	#97
Sun, Apr 12th	vs HOU	Cody Bolton (0-1)	#320	@ CHC	Jameson Taillon (2-5)	#102
Mon, Apr 13th	vs HOU	Mike Burrows (4-9)	#178	vs WSH	Cade Cavalli (6-4)	#64
Tue, Apr 14th	@ SD	Michael King (6-7)	#50	vs WSH	PJ Poulin (3-0)	#287
Wed, Apr 15th	@ SD	Randy Vasquez (6-6)	#269	vs WSH	Jake Irvin (2-4)	#191
Thu, Apr 16th	@ SD	Walker Buehler (6-5)	#190	vs WSH	Foster Griffin (11-2)	#63
Fri, Apr 17th	vs TEX	Jacob deGrom (7-6)	#8	vs TB	Nick Martinez (9-2)	#103
Sat, Apr 18th	vs TEX	Nathan Eovaldi (9-8)	#17	vs TB	Drew Rasmussen (8-5)	#18
Sun, Apr 19th	vs TEX	MacKenzie Gore (6-8)	#35	vs TB	Shane McClanahan (8-6)	#34
Mon, Apr 20th	vs ATH	J.T. Ginn (8-6)	#144
Tue, Apr 21st	vs ATH	Jacob Lopez (4-4)	#220	@ TEX	Kumar Rocker (3-8)	#98
Wed, Apr 22nd	vs ATH	Aaron Civale (5-7)	#236	@ TEX	Jack Leiter (3-7)	#135
Fri, Apr 24th	@ STL	Andre Pallante (10-6)	#133	@ MIL	Brandon Woodruff (2-2)
Sat, Apr 25th	@ STL	Matthew Liberatore (5-7)	#110	@ MIL	Jacob Misiorowski (10-4)	#7
Sun, Apr 26th	@ STL	Michael McGreevy (4-7)	#88	@ MIL	Kyle Harrison (8-2)	#55
Mon, Apr 27th	@ MIN	Connor Prielipp (2-5)	#118	vs STL	Dustin May (5-7)	#45
Tue, Apr 28th	@ MIN	Joe Ryan (6-6)	#14	vs STL	Kyle Leahy (7-4)	#119
Wed, Apr 29th	@ MIN	Taj Bradley (9-4)	#46	vs STL	Andre Pallante (10-6)	#133
Fri, May 1st	vs KC	Cole Ragans (1-4)		vs CIN	Brady Singer (4-9)	#148
Sat, May 2nd	vs KC	Seth Lugo (3-6)	#140	vs CIN	Rhett Lowder (3-7)	#197
Sun, May 3rd	vs KC	Kris Bubic (3-2)	#128	vs CIN	Chase Burns (12-1)	#21
Mon, May 4th	vs ATL	JR Ritchie (1-2)	#295
Tue, May 5th	vs ATL	Bryce Elder (6-6)	#126	@ ARI	Eduardo Rodriguez (8-3)	#111
Wed, May 6th	vs ATL	Martin Perez (6-6)	#181	@ ARI	Michael Soroka (8-3)	#72
Fri, May 8th	@ CWS	Sean Burke (7-4)	#86	@ SF	Robbie Ray (8-6)	#87
Sat, May 9th	@ CWS	Anthony Kay (6-4)	#200	@ SF	Landen Roupp (7-8)	#56
Sun, May 10th	@ CWS	Davis Martin (9-5)	#92	@ SF	Tyler Mahle (2-9)	#83
Mon, May 11th	@ HOU	Peter Lambert (8-5)	#136
Tue, May 12th	@ HOU	Tatsuya Imai (6-4)	#129	vs COL	Michael Lorenzen (3-9)	#428
Wed, May 13th	@ HOU	Lance McCullers Jr. (2-3)	#198	vs COL	Jose Quintana (2-3)	#431
Thu, May 14th	@ HOU	Mike Burrows (4-9)	#178	vs COL	Chase Dollander (3-3)
Fri, May 15th	vs SD	Randy Vasquez (6-6)	#269	vs PHI	Aaron Nola (3-7)	#52
Sat, May 16th	vs SD	Walker Buehler (6-5)	#190	vs PHI	Cristopher Sanchez (12-4)	#4
Sun, May 17th	vs SD	Lucas Giolito (2-3)	#344	vs PHI	Zack Wheeler (10-2)	#5
Mon, May 18th	vs CWS	Noah Schultz (3-7)	#213
Tue, May 19th	vs CWS	Anthony Kay (6-4)	#200	@ STL	Matthew Liberatore (5-7)	#110
Wed, May 20th	vs CWS	Sean Burke (7-4)	#86	@ STL	Michael McGreevy (4-7)	#88
Fri, May 22nd	@ KC	Noah Cameron (5-8)	#79	@ TOR	Kevin Gausman (4-9)	#19
Sat, May 23rd	@ KC	Stephen Kolek (4-3)	#223	@ TOR	Patrick Corbin (3-4)	#245
Sun, May 24th	@ KC	Seth Lugo (3-6)	#140	@ TOR	Dylan Cease (6-5)	#9
Mon, May 25th	@ ATH	Aaron Civale (5-7)	#236	vs CHC	Ben Brown (4-2)	#101
Tue, May 26th	@ ATH	Gage Jump (3-5)	#91	vs CHC	Jordan Wicks (0-2)	#230
Wed, May 27th	@ ATH	Jeffrey Springs (3-9)	#189	vs CHC	Jameson Taillon (2-5)	#102
Fri, May 29th	vs ARI	Zac Gallen (3-9)	#169	vs MIN	Taj Bradley (9-4)	#46
Sat, May 30th	vs ARI	Ryne Nelson (3-5)	#207	vs MIN	Bailey Ober (7-3)	#89
Sun, May 31st	vs ARI	Merrill Kelly (7-8)	#114	vs MIN	Zebby Matthews (4-7)	#109
Mon, Jun 1st	vs NYM	Austin Warren
Tue, Jun 2nd	vs NYM	Huascar Brazoban (4-2)	#201	@ HOU	Mike Burrows (4-9)	#178
Wed, Jun 3rd	vs NYM	Freddy Peralta (5-9)	#42	@ HOU	Spencer Arrighetti (7-5)	#154
Fri, Jun 5th	@ DET	Framber Valdez (5-7)	#29	@ ATL	Martin Perez (6-6)	#181
Sat, Jun 6th	@ DET	Keider Montero (6-5)	#160	@ ATL	Spencer Strider (4-2)	#208
Sun, Jun 7th	@ DET	Jack Flaherty (3-8)	#54	@ ATL	Bryce Elder (6-6)	#126
Mon, Jun 8th	@ BAL	Trey Gibson (1-3)	#313
Tue, Jun 9th	@ BAL	Trevor Rogers (6-7)	#70	vs LAD	Eric Lauer (4-5)	#296
Wed, Jun 10th	@ BAL	Brandon Young (8-2)	#131	vs LAD	Shohei Ohtani (8-2)	#1
Thu, Jun 11th	@ BAL	Kyle Bradish (6-9)	#40	vs LAD	Justin Wrobleski (11-2)	#78
Fri, Jun 12th	@ WSH	Zack Littell (7-7)	#179	vs MIA	Sandy Alcantara (10-5)	#53
Sat, Jun 13th	@ WSH	Cade Cavalli (6-4)	#64	vs MIA	Lake Bachar (1-1)	#186
Sun, Jun 14th	@ WSH	PJ Poulin (3-0)	#287	vs MIA	Max Meyer (9-1)	#61
Tue, Jun 16th	vs BAL	Brandon Young (8-2)	#131	@ ATH	Jack Perkins (2-5)	#108
Wed, Jun 17th	vs BAL	Kyle Bradish (6-9)	#40	@ ATH	Aaron Civale (5-7)	#236
Thu, Jun 18th	vs BAL	Shane Baz (4-9)	#68
Fri, Jun 19th	vs BOS	Ranger Suarez (4-3)	#28	@ COL	Kyle Freeland (2-9)	#240
Sat, Jun 20th	vs BOS	Connelly Early (7-5)	#138	@ COL	Tomoyuki Sugano (9-4)	#433
Sun, Jun 21st	vs BOS	Payton Tolle (5-6)	#59	@ COL	Michael Lorenzen (3-9)	#428
Tue, Jun 23rd	@ PIT	Mitch Keller (6-7)	#112	vs SEA	George Kirby (8-8)	#23
Wed, Jun 24th	@ PIT	Braxton Ashcraft (9-4)	#25	vs SEA	Bryan Woo (7-6)	#13
Thu, Jun 25th	@ PIT	Bubba Chandler (3-8)	#123	vs SEA	Bryce Miller (4-4)	#38
Fri, Jun 26th	@ CLE	Joey Cantillo (8-5)	#74	vs CIN	Andrew Abbott (5-6)	#105
Sat, Jun 27th	@ CLE	Slade Cecconi (4-6)	#104	vs CIN	Chase Burns (12-1)	#21
Sun, Jun 28th	@ CLE	Gavin Williams (10-5)	#26	vs CIN	Brady Singer (4-9)	#148
Mon, Jun 29th	vs LAA	Ryan Johnson (2-4)	#175	@ PHI	Aaron Nola (3-7)	#52
Tue, Jun 30th	vs LAA	Jose Soriano (8-6)	#47	@ PHI	Cristopher Sanchez (12-4)	#4
Thu, Jul 2nd	vs LAA	Walbert Urena (6-7)	#258	@ PHI	Alan Rangel (0-3)	#315
Fri, Jul 3rd	vs TOR	Dylan Cease (6-5)	#9	@ WSH	Foster Griffin (11-2)	#63
Sat, Jul 4th	vs TOR	Shane Bieber (1-1)	#80	@ WSH	Carson Palmquist (0-1)	#293
Sun, Jul 5th	vs TOR	Trey Yesavage (4-5)	#82	@ WSH	Cade Cavalli (6-4)	#64
Tue, Jul 7th	@ MIA	Max Meyer (9-1)	#61	vs ATL	Hurston Waldrep (0-1)	#224
Wed, Jul 8th	@ MIA	Tyler Phillips (2-5)	#271	vs ATL	Grant Holmes (6-4)	#152
Thu, Jul 9th	@ MIA	Janson Junk (4-6)	#106	vs ATL	Bryce Elder (6-6)	#126
Fri, Jul 10th	@ TB	Nick Martinez (9-2)	#103
Sat, Jul 11th	@ TB	Griffin Jax (5-7)	#60	vs MIL	Shane Drohan (5-3)	#85
Sun, Jul 12th	@ TB	Ian Seymour (6-2)	#76	vs MIL	Robert Gasser (2-4)	#137
Fri, Jul 17th	vs SF	Landen Roupp (7-8)	#56
Sat, Jul 18th	vs SF	Logan Webb (5-7)	#15	@ CLE	Logan Allen (0-0)	#164
Sun, Jul 19th	vs SF	Robbie Ray (8-6)	#87	@ CLE	Joey Cantillo (8-5)	#74
Mon, Jul 20th	vs CIN	Andrew Abbott (5-6)	#105	@ NYY	Ryan Weathers (3-7)	#57
Tue, Jul 21st	vs CIN	Chase Burns (12-1)	#21
Wed, Jul 22nd	vs CIN	Brady Singer (4-9)	#148	@ NYY	Max Fried (4-3)	#24
Fri, Jul 24th	@ TEX	MacKenzie Gore (6-8)	#35	vs CHC	Matthew Boyd (6-1)	#37
Sat, Jul 25th	@ TEX	Nathan Eovaldi (9-8)	#17	vs CHC	Shota Imanaga (6-8)	#27
Sun, Jul 26th	@ TEX	Jacob deGrom (7-6)	#8	vs CHC	Jameson Taillon (2-5)	#102
Mon, Jul 27th	@ TEX	Kumar Rocker (3-8)	#98	vs ARI	Merrill Kelly (7-8)	#114
Tue, Jul 28th	@ LAD	Eric Lauer (4-5)	#296	vs ARI	Brandon Pfaadt (4-1)	#71
Wed, Jul 29th	@ LAD	Justin Wrobleski (11-2)	#78	vs ARI	Eduardo Rodriguez (8-3)	#111
Thu, Jul 30th	@ LAD	Roki Sasaki (3-5)	#117	@ CIN	Hunter Greene (2-1)	#16
Fri, Jul 31st	vs MIN			@ CIN
Sat, Aug 1st	vs MIN			@ CIN
Sun, Aug 2nd	vs MIN			@ CIN
Tue, Aug 4th	vs DET			@ MIL
Wed, Aug 5th	vs DET			@ MIL
Thu, Aug 6th	vs DET			@ MIL
Fri, Aug 7th	vs TB			vs NYM
Sat, Aug 8th	vs TB			vs NYM
Sun, Aug 9th	vs TB			vs NYM
Tue, Aug 11th	@ NYY			@ MIA
Wed, Aug 12th	@ NYY			@ MIA
Thu, Aug 13th	@ NYY			@ MIA
Fri, Aug 14th	@ HOU			vs BOS
Sat, Aug 15th	@ HOU			vs BOS
Sun, Aug 16th	@ HOU			vs BOS
Tue, Aug 18th	@ MIL			vs DET
Wed, Aug 19th	@ MIL			vs DET
Thu, Aug 20th	@ MIL
Fri, Aug 21st	vs CHC			@ LAD
Sat, Aug 22nd	vs CHC			@ LAD
Sun, Aug 23rd	vs CHC			@ LAD
Mon, Aug 24th	vs PHI			@ SD
Tue, Aug 25th	vs PHI			@ SD
Wed, Aug 26th	vs PHI			@ SD
Fri, Aug 28th	@ TOR			@ STL
Sat, Aug 29th	@ TOR			@ STL
Sun, Aug 30th	@ TOR			@ STL
Mon, Aug 31st	@ BOS
Tue, Sep 1st	@ BOS			vs SF
Wed, Sep 2nd	@ BOS			vs SF
Thu, Sep 3rd	vs ATH			vs SF
Fri, Sep 4th	vs ATH			vs LAA
Sat, Sep 5th	vs ATH			vs LAA
Sun, Sep 6th	vs ATH			vs LAA
Tue, Sep 8th	vs TEX			@ CWS
Wed, Sep 9th	vs TEX			@ CWS
Thu, Sep 10th	vs TEX			@ CWS
Fri, Sep 11th	@ ATH			@ CHC
Sat, Sep 12th	@ ATH			@ CHC
Sun, Sep 13th	@ ATH			@ CHC
Mon, Sep 14th	@ LAA
Tue, Sep 15th	@ LAA			vs MIL
Wed, Sep 16th	@ LAA			vs MIL
Fri, Sep 18th	@ COL			vs KC
Sat, Sep 19th	@ COL			vs KC
Sun, Sep 20th	@ COL			vs KC
Tue, Sep 22nd	vs HOU			vs STL
Wed, Sep 23rd	vs HOU			vs STL
Thu, Sep 24th	vs LAA			vs STL
Fri, Sep 25th	vs LAA			@ DET
Sat, Sep 26th	vs LAA			@ DET
Sun, Sep 27th	vs LAA			@ DET
Thu, Apr 23rd				@ TEX	Jacob deGrom (7-6)	#8
Thu, Apr 30th				vs STL	Hunter Dobbins (1-1)	#182
Thu, May 7th				@ ARI	Zac Gallen (3-9)	#169
Thu, May 21st				@ STL	Dustin May (5-7)	#45
Thu, May 28th				vs CHC	Colin Rea (7-6)	#195
Thu, Jun 4th				@ HOU	Kai-Wei Teng (4-6)	#242
Mon, Jun 15th				@ ATH	J.T. Ginn (8-6)	#144
Wed, Jul 1st				@ PHI	Zack Wheeler (10-2)	#5
Mon, Aug 3rd				@ MIL
Mon, Aug 17th				vs DET
Thu, Sep 17th				vs MIL

Who Should I Trade?

Cooper Criswell for Isaac Mattson (2026)

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