Who Should I Trade?

A.J. Causey for Isaac Mattson (2026)

Summary
Stats
Projections
News & Notes
Schedule

Who Should I Trade? Player Summaries
	Experts' Pick
	Isaac Mattson RP - PIT	A.J. Causey RP - ATH
Expert Recommendation	100% Recommended by 2 of 2 experts	0% Recommended by 0 of 2 experts
Rankings

Rest of Season	# 391	‐
VBR	# 743	‐

Projections

Strikeouts	11	‐
Wins	1	‐
Saves	0	‐
ERA	4.40	‐
WHIP	1.44	‐

Misc

Injury Alert	MiLB	MiLB

Expert Ranks

Kelly Kirby FantasyPros	# 422	‐

Kevin Spinelli KevScores	# 418	‐

Who Should I Trade? Player Statistics
	Isaac Mattson RP - PIT	A.J. Causey RP - ATH
2026 Stats


Games Played	36	‐

Games Started	0	‐

Innings Pitched	34.2	‐

Wins	0	‐

Losses	0	‐

Saves	0	‐

Blown Saves	2	‐

Holds	8	‐

Hits Allowed	38	‐

Earned Runs	19	‐

Home Runs Allowed	3	‐

Strikeouts	33	‐

Walks	16	‐

ERA	4.93	‐

WHIP	1.56	‐

Who Should I Trade? Player Projections
	Isaac Mattson RP - PIT	A.J. Causey RP - ATH
2026 Projections


Games Played	15	‐

Games Started	0	‐

Innings Pitched	11.9	‐

Wins	1	‐

Losses	1	‐

Saves	0	‐

Blown Saves	0	‐

Holds	1	‐

Hits Allowed	11	‐

Earned Runs	6	‐

Home Runs Allowed	2	‐

Strikeouts	11	‐

Walks	6	‐

ERA	4.40	‐

WHIP	1.44	‐

Who Should I Trade? Player Notes
	Isaac Mattson RP - PIT	A.J. Causey RP - ATH
News
	The Pirates optioned RHP Isaac Mattson to Triple-A Indianapolis. Ari Koslow Sun, Aug 2nd	The Athletics reassigned RHP A.J. Causey to minor league camp. Ari Koslow Mon, Mar 2nd
	The Pirates recalled RHP Isaac Mattson from Triple-A Indianapolis. Ari Koslow Sat, Aug 1st	The Athletics acquired A.J. Causey from the Royals in exchange for Mitch Spence. Ari Koslow Thu, Feb 12th
	The Pirates optioned RHP Isaac Mattson to Triple-A Indianapolis. Ari Koslow Wed, Jul 29th
	The Pirates recalled RHP Isaac Mattson from Triple-A Indianapolis. Ari Koslow Sat, Jun 13th
	Isaac Mattson has been sent to Triple-A Indianapolis. Nate Miller - FantasyPros Wed, May 20th
Notes
There are no recent notes for these players

Who Should I Trade? Player Schedules
Date	Opp	Opp Pitcher	VBR	Opp	Opp Pitcher	VBR
	Isaac Mattson RP - PIT			A.J. Causey RP - ATH
Fri, Mar 27th				@ TOR	Kevin Gausman (5-10)	#25
Sat, Mar 28th	@ NYM	David Peterson (6-7)	#88	@ TOR	Dylan Cease (7-5)	#8
Sun, Mar 29th	@ NYM	Nolan McLean (7-7)	#34	@ TOR	Eric Lauer (6-5)	#312
Mon, Mar 30th	@ CIN	Chase Burns (13-1)	#26	@ ATL	Bryce Elder (7-6)	#139
Tue, Mar 31st	@ CIN	Brandon Williamson (2-3)	#327	@ ATL	Jose Suarez	#171
Wed, Apr 1st	@ CIN	Andrew Abbott (5-7)	#109	@ ATL	Chris Sale (12-6)	#7
Fri, Apr 3rd	vs BAL	Kyle Bradish (7-10)	#43	vs HOU	Cristian Javier (1-2)	#172
Sat, Apr 4th	vs BAL	Shane Baz (4-10)	#63	vs HOU	Tatsuya Imai (6-4)	#142
Sun, Apr 5th	vs BAL	Chris Bassitt (4-4)	#135	vs HOU	Lance McCullers Jr. (2-3)	#275
Tue, Apr 7th	vs SD	Nick Pivetta (1-2)	#74	@ NYY	Cam Schlittler (10-6)	#15
Wed, Apr 8th	vs SD	Michael King (6-8)	#57	@ NYY	Will Warren (8-5)	#65
Thu, Apr 9th				@ NYY	Ryan Weathers (4-7)	#64
Fri, Apr 10th	@ CHC	Shota Imanaga (7-9)	#28	@ NYM	Clay Holmes (4-4)	#89
Sat, Apr 11th	@ CHC	Edward Cabrera (5-4)	#80	@ NYM	Kodai Senga (0-8)	#133
Sun, Apr 12th	@ CHC	Jameson Taillon (2-6)	#145	@ NYM	Freddy Peralta (5-9)	#50
Mon, Apr 13th	vs WSH	Cade Cavalli (8-5)	#54	vs TEX	Nathan Eovaldi (10-9)	#20
Tue, Apr 14th	vs WSH	PJ Poulin (3-0)	#350	vs TEX	MacKenzie Gore (6-9)	#36
Wed, Apr 15th	vs WSH	Jake Irvin (2-5)	#164	vs TEX	Kumar Rocker (4-8)	#81
Thu, Apr 16th	vs WSH	Foster Griffin (12-3)	#53	vs TEX	Jack Leiter (3-7)	#126
Fri, Apr 17th	vs TB	Nick Martinez (10-3)	#99	vs CWS	Davis Martin (9-5)	#82
Sat, Apr 18th	vs TB	Drew Rasmussen (10-5)	#17	vs CWS	Erick Fedde (6-6)	#393
Sun, Apr 19th	vs TB	Shane McClanahan (9-6)	#68	vs CWS	Noah Schultz (3-8)	#190
Mon, Apr 20th				@ SEA	Emerson Hancock (6-5)	#76
Tue, Apr 21st	@ TEX	Kumar Rocker (4-8)	#81	@ SEA	Luis Castillo (3-9)	#61
Wed, Apr 22nd	@ TEX	Jack Leiter (3-7)	#126	@ SEA	Logan Gilbert (8-6)	#9
Fri, Apr 24th	@ MIL	Brandon Woodruff (2-2)		@ TEX	Nathan Eovaldi (10-9)	#20
Sat, Apr 25th	@ MIL	Jacob Misiorowski (11-5)	#5	@ TEX	MacKenzie Gore (6-9)	#36
Sun, Apr 26th	@ MIL	Kyle Harrison (8-2)	#44	@ TEX	Kumar Rocker (4-8)	#81
Tue, Apr 28th	vs STL	Kyle Leahy (7-4)	#123	vs KC	Kris Bubic (3-2)	#149
Wed, Apr 29th	vs STL	Andre Pallante (11-6)	#111	vs KC	Michael Wacha (5-8)	#72
Thu, Apr 30th	vs STL	Hunter Dobbins (2-1)	#166	vs KC	Noah Cameron (5-8)	#78
Fri, May 1st	vs CIN	Brady Singer (5-10)	#152	vs CLE	Joey Cantillo (8-6)	#85
Sat, May 2nd	vs CIN	Rhett Lowder (3-7)	#280	vs CLE	Slade Cecconi (4-7)	#134
Sun, May 3rd	vs CIN	Chase Burns (13-1)	#26	vs CLE	Parker Messick (8-6)	#42
Tue, May 5th	@ ARI	Eduardo Rodriguez (10-3)	#127	@ PHI	Cristopher Sanchez (14-4)	#4
Wed, May 6th	@ ARI	Michael Soroka (8-3)	#69	@ PHI	Zack Wheeler (10-2)	#6
Thu, May 7th	@ ARI	Zac Gallen (3-9)	#232	@ PHI	Andrew Painter (1-8)	#213
Fri, May 8th	@ SF	Robbie Ray (10-6)	#97	@ BAL	Kyle Bradish (7-10)	#43
Sat, May 9th	@ SF	Landen Roupp (7-10)	#62	@ BAL	Shane Baz (4-10)	#63
Sun, May 10th	@ SF	Tyler Mahle (3-9)	#100	@ BAL	Keegan Akin (0-1)
Tue, May 12th	vs COL	Michael Lorenzen (3-10)	#432	vs STL	Andre Pallante (11-6)	#111
Wed, May 13th	vs COL	Jose Quintana (2-3)	#428	vs STL	Matthew Liberatore (5-8)	#118
Thu, May 14th	vs COL	Chase Dollander (3-3)		vs STL	Michael McGreevy (4-9)	#98
Fri, May 15th	vs PHI	Aaron Nola (3-9)	#55	vs SF	Tyler Mahle (3-9)	#100
Sat, May 16th	vs PHI	Cristopher Sanchez (14-4)	#4	vs SF	Trevor McDonald (3-7)
Sun, May 17th	vs PHI	Zack Wheeler (10-2)	#6	vs SF	Adrian Houser (2-7)	#189
Mon, May 18th				@ LAA	Walbert Urena (7-7)	#261
Tue, May 19th	@ STL	Matthew Liberatore (5-8)	#118	@ LAA	Reid Detmers (3-7)	#35
Wed, May 20th	@ STL	Michael McGreevy (4-9)	#98	@ LAA	Jack Kochanowicz (2-5)
Thu, May 21st	@ STL	Dustin May (5-7)	#56	@ LAA	Jose Soriano (9-6)	#46
Fri, May 22nd	@ TOR	Kevin Gausman (5-10)	#25	@ SD	Walker Buehler (6-5)	#243
Sat, May 23rd	@ TOR	Patrick Corbin (3-4)	#295	@ SD	Lucas Giolito (2-3)	#306
Sun, May 24th	@ TOR	Dylan Cease (7-5)	#8	@ SD	Michael King (6-8)	#57
Mon, May 25th	vs CHC	Ben Brown (4-2)	#140	vs SEA	Luis Castillo (3-9)	#61
Tue, May 26th	vs CHC	Jordan Wicks (0-2)	#329	vs SEA	Emerson Hancock (6-5)	#76
Wed, May 27th	vs CHC	Jameson Taillon (2-6)	#145	vs SEA	Logan Gilbert (8-6)	#9
Fri, May 29th	vs MIN	Taj Bradley (9-4)	#49	vs NYY	Carlos Rodon (4-2)	#101
Sat, May 30th	vs MIN	Bailey Ober (7-3)	#84	vs NYY	Ryan Weathers (4-7)	#64
Sun, May 31st	vs MIN	Zebby Matthews (4-8)	#131	vs NYY	Will Warren (8-5)	#65
Tue, Jun 2nd	@ HOU	Mike Burrows (4-9)	#221	@ CHC	Jameson Taillon (2-6)	#145
Wed, Jun 3rd	@ HOU	Spencer Arrighetti (7-5)	#278	@ CHC	Colin Rea (8-8)	#169
Thu, Jun 4th	@ HOU	Kai-Wei Teng (5-6)	#260	@ CHC	Shota Imanaga (7-9)	#28
Fri, Jun 5th	@ ATL	Martin Perez (7-6)	#204	@ HOU	Peter Lambert (8-5)	#116
Sat, Jun 6th	@ ATL	Spencer Strider (4-2)	#317	@ HOU	Tatsuya Imai (6-4)	#142
Sun, Jun 7th	@ ATL	Bryce Elder (7-6)	#139	@ HOU	Mike Burrows (4-9)	#221
Mon, Jun 8th				vs MIL	Kyle Harrison (8-2)	#44
Tue, Jun 9th	vs LAD	Eric Lauer (6-5)	#312	vs MIL	Robert Gasser (3-4)	#110
Wed, Jun 10th	vs LAD	Shohei Ohtani (8-2)	#1	vs MIL	Brandon Sproat (3-7)	#151
Fri, Jun 12th	vs MIA	Sandy Alcantara (12-6)	#58	vs COL	Sean Sullivan (0-3)	#424
Sat, Jun 13th	vs MIA	Lake Bachar (1-2)	#216	vs COL	Kyle Freeland (3-10)	#320
Sun, Jun 14th	vs MIA	Max Meyer (9-1)	#86	vs COL	Tomoyuki Sugano (11-4)	#434
Mon, Jun 15th	@ ATH	J.T. Ginn (8-6)	#160	vs PIT	Jared Jones (2-2)	#52
Tue, Jun 16th	@ ATH	Jack Perkins (2-7)	#94	vs PIT	Mitch Keller (6-8)	#124
Wed, Jun 17th	@ ATH	Aaron Civale (5-7)	#186	vs PIT	Braxton Ashcraft (11-4)	#31
Thu, Jun 18th				vs LAA	Ryan Johnson (2-6)	#236
Fri, Jun 19th	@ COL	Kyle Freeland (3-10)	#320	vs LAA	Jose Soriano (9-6)	#46
Sat, Jun 20th	@ COL	Tomoyuki Sugano (11-4)	#434	vs LAA	Walbert Urena (7-7)	#261
Sun, Jun 21st	@ COL	Michael Lorenzen (3-10)	#432	vs LAA	Reid Detmers (3-7)	#35
Tue, Jun 23rd	vs SEA	George Kirby (8-9)	#19	@ SF	Robbie Ray (10-6)	#97
Wed, Jun 24th	vs SEA	Bryan Woo (7-8)	#12	@ SF	Tyler Mahle (3-9)	#100
Thu, Jun 25th	vs SEA	Bryce Miller (4-5)	#33	@ SF	Landen Roupp (7-10)	#62
Fri, Jun 26th	vs CIN	Andrew Abbott (5-7)	#109	@ LAA	Walbert Urena (7-7)	#261
Sat, Jun 27th	vs CIN	Chase Burns (13-1)	#26	@ LAA	Reid Detmers (3-7)	#35
Sun, Jun 28th	vs CIN	Brady Singer (5-10)	#152	@ LAA	Sam Aldegheri (3-4)	#423
Mon, Jun 29th	@ PHI	Aaron Nola (3-9)	#55	vs LAD	Eric Lauer (6-5)	#312
Tue, Jun 30th	@ PHI	Cristopher Sanchez (14-4)	#4	vs LAD	Justin Wrobleski (11-3)	#92
Wed, Jul 1st	@ PHI	Zack Wheeler (10-2)	#6	vs LAD	Jack Dreyer (4-1)	#146
Fri, Jul 3rd	@ WSH	Foster Griffin (12-3)	#53	vs MIA	Tyler Phillips (3-5)	#263
Sat, Jul 4th	@ WSH	Carson Palmquist (0-1)	#274	vs MIA	Sandy Alcantara (12-6)	#58
Sun, Jul 5th	@ WSH	Cade Cavalli (8-5)	#54	vs MIA	Eury Perez (5-8)	#41
Tue, Jul 7th	vs ATL	Hurston Waldrep (0-1)	#401	@ DET	Tarik Skubal (7-5)	#2
Wed, Jul 8th	vs ATL	Grant Holmes (6-4)	#180	@ DET	Troy Melton (6-1)	#59
Thu, Jul 9th	vs ATL	Bryce Elder (7-6)	#139	@ DET	Framber Valdez (6-7)	#32
Fri, Jul 10th				@ CWS	Sean Burke (7-5)	#66
Sat, Jul 11th	vs MIL	Shane Drohan (6-4)	#71	@ CWS	Bryan Hudson (3-4)	#150
Sun, Jul 12th	vs MIL	Robert Gasser (3-4)	#110	@ CWS	Noah Schultz (3-8)	#190
Fri, Jul 17th				vs WSH	Cade Cavalli (8-5)	#54
Sat, Jul 18th	@ CLE	Logan Allen (0-0)	#183	vs WSH	Zack Littell (7-8)	#191
Sun, Jul 19th	@ CLE	Joey Cantillo (8-6)	#85	vs WSH	Foster Griffin (12-3)	#53
Mon, Jul 20th	@ NYY	Ryan Weathers (4-7)	#64	@ ARI	Mitch Bratt (0-1)	#195
Tue, Jul 21st				@ ARI	Kohl Drake (0-0)	#267
Wed, Jul 22nd	@ NYY	Max Fried (4-3)	#14	@ ARI	Merrill Kelly (8-9)	#130
Fri, Jul 24th	vs CHC	Matthew Boyd (7-1)	#38	@ MIN	Zebby Matthews (4-8)	#131
Sat, Jul 25th	vs CHC	Shota Imanaga (7-9)	#28	@ MIN	Kendry Rojas (1-1)	#200
Sun, Jul 26th	vs CHC	Jameson Taillon (2-6)	#145	@ MIN	Connor Prielipp (3-5)	#106
Mon, Jul 27th	vs ARI	Merrill Kelly (8-9)	#130	vs BOS	Payton Tolle (6-6)	#40
Tue, Jul 28th	vs ARI	Brandon Pfaadt (6-1)	#90	vs BOS	Jake Bennett (7-4)	#87
Wed, Jul 29th	vs ARI	Eduardo Rodriguez (10-3)	#127	vs BOS	Patrick Sandoval (0-0)	#121
Thu, Jul 30th	@ CIN	Rhett Lowder (3-7)	#280	vs BOS	Sonny Gray (13-2)	#27
Fri, Jul 31st	@ CIN	Hunter Greene (2-2)	#29	vs DET	Tyler Holton (1-4)	#138
Sat, Aug 1st	@ CIN	Andrew Abbott (5-7)	#109	vs DET	Framber Valdez (6-7)	#32
Sun, Aug 2nd	@ CIN	Chase Burns (13-1)	#26	vs DET	Keider Montero (8-6)	#103
Tue, Aug 4th	@ MIL	Logan Henderson (5-1)	#39	@ CIN	Brady Singer (5-10)	#152
Wed, Aug 5th	@ MIL	Kyle Harrison (8-2)	#44	@ CIN	Rhett Lowder (3-7)	#280
Thu, Aug 6th	@ MIL	Shane Drohan (6-4)	#71	@ CIN	Hunter Greene (2-2)	#29
Fri, Aug 7th	vs NYM	Zac Thornton (2-2)	#158	@ BOS	Payton Tolle (6-6)	#40
Sat, Aug 8th	vs NYM	Clay Holmes (4-4)	#89	@ BOS	Jake Bennett (7-4)	#87
Sun, Aug 9th	vs NYM	Sean Manaea (2-5)	#75	@ BOS	Patrick Sandoval (0-0)	#121
Mon, Aug 10th				vs TB	Jesse Scholtens (5-3)	#373
Tue, Aug 11th	@ MIA	Eury Perez (5-8)	#41	vs TB	Nick Martinez (10-3)	#99
Wed, Aug 12th	@ MIA	Janson Junk (5-6)	#119	vs TB	Drew Rasmussen (10-5)	#17
Fri, Aug 14th	vs BOS			vs TEX
Sat, Aug 15th	vs BOS			vs TEX
Sun, Aug 16th	vs BOS			vs TEX
Mon, Aug 17th	vs DET			@ KC
Tue, Aug 18th	vs DET			@ KC
Wed, Aug 19th	vs DET			@ KC
Thu, Aug 20th				@ KC
Fri, Aug 21st	@ LAD			@ HOU
Sat, Aug 22nd	@ LAD			@ HOU
Sun, Aug 23rd	@ LAD			@ HOU
Mon, Aug 24th	@ SD			vs MIN
Tue, Aug 25th	@ SD			vs MIN
Wed, Aug 26th	@ SD			vs MIN
Fri, Aug 28th	@ STL			vs BAL
Sat, Aug 29th	@ STL			vs BAL
Sun, Aug 30th	@ STL			vs BAL
Mon, Aug 31st				@ TEX
Tue, Sep 1st	vs SF			@ TEX
Wed, Sep 2nd	vs SF			@ TEX
Thu, Sep 3rd	vs SF			@ SEA
Fri, Sep 4th	vs LAA			@ SEA
Sat, Sep 5th	vs LAA			@ SEA
Sun, Sep 6th	vs LAA			@ SEA
Mon, Sep 7th				vs TOR
Tue, Sep 8th	@ CWS			vs TOR
Wed, Sep 9th	@ CWS			vs TOR
Fri, Sep 11th	@ CHC			vs SEA
Sat, Sep 12th	@ CHC			vs SEA
Sun, Sep 13th	@ CHC			vs SEA
Tue, Sep 15th	vs MIL			@ TB
Wed, Sep 16th	vs MIL			@ TB
Thu, Sep 17th	vs MIL			@ TB
Fri, Sep 18th	vs KC			@ CLE
Sat, Sep 19th	vs KC			@ CLE
Sun, Sep 20th	vs KC			@ CLE
Tue, Sep 22nd	vs STL			vs LAA
Wed, Sep 23rd	vs STL			vs LAA
Thu, Sep 24th	vs STL			vs HOU
Fri, Sep 25th	@ DET			vs HOU
Sat, Sep 26th	@ DET			vs HOU
Sun, Sep 27th	@ DET			vs HOU
Thu, Mar 26th	@ NYM	Freddy Peralta (5-9)	#50
Mon, Apr 6th	vs SD	German Marquez (4-2)	#381
Thu, Apr 23rd	@ TEX	Jacob deGrom (7-7)	#11
Mon, Apr 27th	vs STL	Dustin May (5-7)	#56
Thu, May 28th	vs CHC	Colin Rea (8-8)	#169
Thu, Jun 11th	vs LAD	Justin Wrobleski (11-3)	#92
Thu, Jul 2nd	@ PHI	Alan Rangel (0-3)	#265
Mon, Aug 3rd	@ MIL	Brandon Sproat (3-7)	#151
Thu, Aug 13th	@ MIA
Thu, Sep 10th	@ CWS

Who Should I Trade?

A.J. Causey for Isaac Mattson (2026)

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