Who Should I Trade?

Isaac Mattson for Joe La Sorsa (2026)

Summary
Stats
Projections
News & Notes
Schedule

Who Should I Trade? Player Summaries
	Experts' Pick
	Isaac Mattson RP - PIT	Joe La Sorsa RP - BOS
Expert Recommendation	100% Recommended by 2 of 2 experts	0% Recommended by 0 of 2 experts
Rankings

Rest of Season	# 392	‐
VBR	# 834	# 751

Projections

Strikeouts	8	7
Wins	0	0
Saves	0	0
ERA	4.21	4.68
WHIP	1.35	1.46

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	Joe La Sorsa RP - BOS
2026 Stats


Games Played	36	1

Games Started	0	0

Innings Pitched	34.2	0.1

Wins	0	0

Losses	0	0

Saves	0	0

Blown Saves	2	0

Holds	8	0

Hits Allowed	38	1

Earned Runs	19	1

Home Runs Allowed	3	1

Strikeouts	33	1

Walks	16	0

ERA	4.93	27.00

WHIP	1.56	3.00

Who Should I Trade? Player Projections
	Isaac Mattson RP - PIT	Joe La Sorsa RP - BOS
2026 Projections


Games Played	13	13

Games Started	0	0

Innings Pitched	9.5	9.8

Wins	0	0

Losses	0	1

Saves	0	0

Blown Saves	0	0

Holds	1	0

Hits Allowed	8	10

Earned Runs	4	5

Home Runs Allowed	1	1

Strikeouts	8	7

Walks	4	3

ERA	4.21	4.68

WHIP	1.35	1.46

Who Should I Trade? Player Notes
	Isaac Mattson RP - PIT	Joe La Sorsa RP - BOS
News
	The Pirates optioned RHP Isaac Mattson to Triple-A Indianapolis. Ari Koslow Sun, Aug 2nd	The Red Sox optioned Joe La Sorsa to Triple-A. Ari Koslow Mon, Jun 8th
	The Pirates recalled RHP Isaac Mattson from Triple-A Indianapolis. Ari Koslow Sat, Aug 1st	The Red Sox selected the contract of LHP Joe La Sorsa from Triple-A Worcester. Ari Koslow Fri, Jun 5th
	The Pirates optioned RHP Isaac Mattson to Triple-A Indianapolis. Ari Koslow Wed, Jul 29th	The Red Sox acquired Joe La Sorsa from Pittsburgh for cash considerations. Ari Koslow Thu, Jun 4th
	The Pirates recalled RHP Isaac Mattson from Triple-A Indianapolis. Ari Koslow Sat, Jun 13th	The Pirates reassigned LHP Joe La Sorsa to minor league camp. Ari Koslow Mon, Mar 23rd
	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			Joe La Sorsa RP - BOS
Thu, Mar 26th	@ NYM	Freddy Peralta (5-9)	#46	@ CIN	Andrew Abbott (5-7)	#124
Sat, Mar 28th	@ NYM	David Peterson (6-7)	#134	@ CIN	Brady Singer (5-10)	#141
Sun, Mar 29th	@ NYM	Nolan McLean (7-7)	#34	@ CIN	Rhett Lowder (4-7)	#282
Mon, Mar 30th	@ CIN	Chase Burns (13-1)	#23	@ HOU	Lance McCullers Jr. (2-3)	#272
Tue, Mar 31st	@ CIN	Brandon Williamson (2-3)	#325	@ HOU	Hunter Brown (3-1)	#24
Wed, Apr 1st	@ CIN	Andrew Abbott (5-7)	#124	@ HOU	Mike Burrows (4-9)	#222
Fri, Apr 3rd	vs BAL	Kyle Bradish (7-10)	#42	vs SD	Michael King (6-8)	#51
Sat, Apr 4th	vs BAL	Shane Baz (4-10)	#59	vs SD	Randy Vasquez (7-6)	#298
Sun, Apr 5th	vs BAL	Chris Bassitt (4-4)	#142	vs SD	Walker Buehler (6-5)	#248
Mon, Apr 6th	vs SD	German Marquez (4-2)	#368	vs MIL	Brandon Woodruff (2-2)
Tue, Apr 7th	vs SD	Nick Pivetta (1-2)	#104	vs MIL	Jacob Misiorowski (11-5)	#7
Wed, Apr 8th	vs SD	Michael King (6-8)	#51	vs MIL	Shane Drohan (6-4)	#93
Fri, Apr 10th	@ CHC	Shota Imanaga (8-9)	#25	@ STL	Dustin May (5-7)	#53
Sat, Apr 11th	@ CHC	Edward Cabrera (5-4)	#96	@ STL	Kyle Leahy (7-4)	#119
Sun, Apr 12th	@ CHC	Jameson Taillon (2-6)	#139	@ STL	Andre Pallante (12-6)	#98
Mon, Apr 13th	vs WSH	Cade Cavalli (8-5)	#68	@ MIN	Bailey Ober (7-3)	#76
Tue, Apr 14th	vs WSH	PJ Poulin (3-0)	#343	@ MIN	Mick Abel (1-2)
Wed, Apr 15th	vs WSH	Jake Irvin (2-5)	#164	@ MIN	Simeon Woods Richardson (1-7)
Thu, Apr 16th	vs WSH	Foster Griffin (12-3)	#69
Fri, Apr 17th	vs TB	Nick Martinez (11-3)	#86	vs DET	Casey Mize (4-7)	#38
Sat, Apr 18th	vs TB	Drew Rasmussen (10-5)	#16	vs DET	Tarik Skubal (7-6)	#2
Sun, Apr 19th	vs TB	Shane McClanahan (9-6)	#62	vs DET	Framber Valdez (6-7)	#31
Tue, Apr 21st	@ TEX	Kumar Rocker (4-8)	#101	vs NYY	Luis Gil (1-2)	#281
Wed, Apr 22nd	@ TEX	Jack Leiter (3-7)	#122	vs NYY	Max Fried (4-3)	#14
Thu, Apr 23rd	@ TEX	Jacob deGrom (7-7)	#11	vs NYY	Cam Schlittler (10-6)	#21
Fri, Apr 24th	@ MIL	Brandon Woodruff (2-2)		@ BAL	Brandon Young (8-2)	#131
Sat, Apr 25th	@ MIL	Jacob Misiorowski (11-5)	#7	@ BAL	Trevor Rogers (7-7)	#63
Sun, Apr 26th	@ MIL	Kyle Harrison (9-2)	#52	@ BAL	Kyle Bradish (7-10)	#42
Mon, Apr 27th	vs STL	Dustin May (5-7)	#53	@ TOR	Dylan Cease (7-5)	#8
Tue, Apr 28th	vs STL	Kyle Leahy (7-4)	#119	@ TOR	Trey Yesavage (5-5)	#102
Wed, Apr 29th	vs STL	Andre Pallante (12-6)	#98	@ TOR	Eric Lauer (6-6)	#314
Thu, Apr 30th	vs STL	Hunter Dobbins (2-2)	#160
Fri, May 1st	vs CIN	Brady Singer (5-10)	#141	vs HOU	Mike Burrows (4-9)	#222
Sat, May 2nd	vs CIN	Rhett Lowder (4-7)	#282	vs HOU	Spencer Arrighetti (7-5)	#269
Sun, May 3rd	vs CIN	Chase Burns (13-1)	#23	vs HOU	Cody Bolton (0-1)	#297
Tue, May 5th	@ ARI	Eduardo Rodriguez (10-4)	#113	@ DET	Framber Valdez (6-7)	#31
Wed, May 6th	@ ARI	Michael Soroka (8-3)	#75	@ DET	Jack Flaherty (3-8)	#84
Thu, May 7th	@ ARI	Zac Gallen (3-9)	#228	vs TB	Griffin Jax (6-9)	#44
Fri, May 8th	@ SF	Robbie Ray (10-6)	#89	vs TB	Jesse Scholtens (5-3)	#406
Sat, May 9th	@ SF	Landen Roupp (7-10)	#64
Sun, May 10th	@ SF	Tyler Mahle (3-9)	#100	vs TB	Nick Martinez (11-3)	#86
Tue, May 12th	vs COL	Michael Lorenzen (3-10)	#435	vs PHI	Zack Wheeler (10-2)	#5
Wed, May 13th	vs COL	Jose Quintana (2-3)	#429	vs PHI	Andrew Painter (1-8)	#208
Thu, May 14th	vs COL	Chase Dollander (3-3)		vs PHI	Jesus Luzardo (10-5)	#9
Fri, May 15th	vs PHI	Aaron Nola (3-9)	#54	@ ATL	Spencer Strider (4-2)	#353
Sat, May 16th	vs PHI	Cristopher Sanchez (14-4)	#4	@ ATL	Bryce Elder (8-6)	#132
Sun, May 17th	vs PHI	Zack Wheeler (10-2)	#5	@ ATL	Grant Holmes (7-4)	#163
Tue, May 19th	@ STL	Matthew Liberatore (5-8)	#77	@ KC	Bailey Falter (0-2)
Wed, May 20th	@ STL	Michael McGreevy (4-9)	#82	@ KC	Michael Wacha (5-8)	#67
Thu, May 21st	@ STL	Dustin May (5-7)	#53
Fri, May 22nd	@ TOR	Kevin Gausman (5-10)	#28	vs MIN	Connor Prielipp (3-5)	#91
Sat, May 23rd	@ TOR	Patrick Corbin (3-4)	#378	vs MIN	Taj Bradley (9-4)	#48
Sun, May 24th	@ TOR	Dylan Cease (7-5)	#8	vs MIN	Bailey Ober (7-3)	#76
Mon, May 25th	vs CHC	Ben Brown (4-2)	#157
Tue, May 26th	vs CHC	Jordan Wicks (0-2)	#334	vs ATL	Spencer Strider (4-2)	#353
Wed, May 27th	vs CHC	Jameson Taillon (2-6)	#139	vs ATL	Bryce Elder (8-6)	#132
Thu, May 28th	vs CHC	Colin Rea (8-8)	#249	vs ATL	Chris Sale (12-6)	#6
Fri, May 29th	vs MIN	Taj Bradley (9-4)	#48	@ CLE	Slade Cecconi (4-7)	#130
Sat, May 30th	vs MIN	Bailey Ober (7-3)	#76	@ CLE	Parker Messick (8-6)	#40
Sun, May 31st	vs MIN	Zebby Matthews (4-8)	#117	@ CLE	Tanner Bibee (4-11)	#50
Tue, Jun 2nd	@ HOU	Mike Burrows (4-9)	#222	vs BAL	Shane Baz (4-10)	#59
Wed, Jun 3rd	@ HOU	Spencer Arrighetti (7-5)	#269	vs BAL	Chris Bassitt (4-4)	#142
Thu, Jun 4th	@ HOU	Kai-Wei Teng (5-6)	#257	vs BAL	Trevor Rogers (7-7)	#63
Fri, Jun 5th	@ ATL	Martin Perez (7-6)	#191	@ NYY	Ryan Weathers (5-7)	#58
Sat, Jun 6th	@ ATL	Spencer Strider (4-2)	#353
Sun, Jun 7th	@ ATL	Bryce Elder (8-6)	#132	@ NYY	Cam Schlittler (10-6)	#21
Tue, Jun 9th	vs LAD	Eric Lauer (6-6)	#314	@ TB	Nick Martinez (11-3)	#86
Wed, Jun 10th	vs LAD	Shohei Ohtani (8-2)	#1	@ TB	Drew Rasmussen (10-5)	#16
Thu, Jun 11th	vs LAD	Justin Wrobleski (11-3)	#85
Fri, Jun 12th	vs MIA	Sandy Alcantara (12-6)	#57	vs TEX	Jack Leiter (3-7)	#122
Sat, Jun 13th	vs MIA	Lake Bachar (1-2)	#186	vs TEX	Jacob deGrom (7-7)	#11
Sun, Jun 14th	vs MIA	Max Meyer (9-1)	#126	vs TEX	Nathan Eovaldi (10-9)	#20
Mon, Jun 15th	@ ATH	J.T. Ginn (8-6)	#151
Tue, Jun 16th	@ ATH	Jack Perkins (2-7)	#87	vs TOR	Dylan Cease (7-5)	#8
Wed, Jun 17th	@ ATH	Aaron Civale (5-7)	#185	vs TOR	Braydon Fisher (3-3)	#179
Fri, Jun 19th	@ COL	Kyle Freeland (3-10)	#304	@ SEA	Bryce Miller (4-5)	#35
Sat, Jun 20th	@ COL	Tomoyuki Sugano (11-5)	#438	@ SEA	Emerson Hancock (6-6)	#72
Sun, Jun 21st	@ COL	Michael Lorenzen (3-10)	#435	@ SEA	Logan Gilbert (8-6)	#12
Tue, Jun 23rd	vs SEA	George Kirby (8-9)	#18	@ COL	Sean Sullivan (0-3)	#432
Wed, Jun 24th	vs SEA	Bryan Woo (8-8)	#10	@ COL	Kyle Freeland (3-10)	#304
Thu, Jun 25th	vs SEA	Bryce Miller (4-5)	#35	vs NYY	Cam Schlittler (10-6)	#21
Fri, Jun 26th	vs CIN	Andrew Abbott (5-7)	#124	vs NYY	Will Warren (8-6)	#60
Sat, Jun 27th	vs CIN	Chase Burns (13-1)	#23	vs NYY	Gerrit Cole (5-5)	#27
Sun, Jun 28th	vs CIN	Brady Singer (5-10)	#141	vs NYY	Carlos Rodon (4-2)	#94
Mon, Jun 29th	@ PHI	Aaron Nola (3-9)	#54	vs WSH	Miles Mikolas (3-8)	#286
Tue, Jun 30th	@ PHI	Cristopher Sanchez (14-4)	#4	vs WSH	Cade Cavalli (8-5)	#68
Wed, Jul 1st	@ PHI	Zack Wheeler (10-2)	#5	vs WSH	Brad Lord (5-2)	#214
Thu, Jul 2nd	@ PHI	Alan Rangel (0-3)	#264
Fri, Jul 3rd	@ WSH	Foster Griffin (12-3)	#69	@ LAA	Reid Detmers (3-8)	#29
Sat, Jul 4th	@ WSH	Carson Palmquist (0-2)	#296	@ LAA	Sam Aldegheri (3-4)	#433
Sun, Jul 5th	@ WSH	Cade Cavalli (8-5)	#68	@ LAA	Ryan Johnson (2-6)	#215
Tue, Jul 7th	vs ATL	Hurston Waldrep (0-1)	#404	@ CWS	Noah Schultz (3-8)	#276
Wed, Jul 8th	vs ATL	Grant Holmes (7-4)	#163	@ CWS	Davis Martin (9-6)	#99
Thu, Jul 9th	vs ATL	Bryce Elder (8-6)	#132	@ CWS	Anthony Kay (8-5)	#176
Sat, Jul 11th	vs MIL	Shane Drohan (6-4)	#93	@ NYM	Freddy Peralta (5-9)	#46
Sun, Jul 12th	vs MIL	Robert Gasser (3-4)	#150	@ NYM	Zac Thornton (2-2)	#147
Sat, Jul 18th	@ CLE	Logan Allen (0-0)	#211	vs TB	Ian Seymour (8-3)	#79
Sun, Jul 19th	@ CLE	Joey Cantillo (8-7)	#78	vs TB	Shane McClanahan (9-6)	#62
Mon, Jul 20th	@ NYY	Ryan Weathers (5-7)	#58	vs BAL	Shane Baz (4-10)	#59
Wed, Jul 22nd	@ NYY	Max Fried (4-3)	#14	vs BAL	Kyle Bradish (7-10)	#42
Fri, Jul 24th	vs CHC	Matthew Boyd (7-1)	#39	vs TOR	Trey Yesavage (5-5)	#102
Sat, Jul 25th	vs CHC	Shota Imanaga (8-9)	#25	vs TOR	Dylan Cease (7-5)	#8
Sun, Jul 26th	vs CHC	Jameson Taillon (2-6)	#139	vs TOR	Kevin Gausman (5-10)	#28
Mon, Jul 27th	vs ARI	Merrill Kelly (8-9)	#115	@ ATH	Jack Perkins (2-7)	#87
Tue, Jul 28th	vs ARI	Brandon Pfaadt (6-1)	#80	@ ATH	Gage Jump (4-7)	#106
Wed, Jul 29th	vs ARI	Eduardo Rodriguez (10-4)	#113	@ ATH	Jacob Lopez (5-4)	#173
Thu, Jul 30th	@ CIN	Rhett Lowder (4-7)	#282	@ ATH	Mason Barnett (1-1)	#346
Fri, Jul 31st	@ CIN	Hunter Greene (2-2)	#26	@ LAD	Edgardo Henriquez
Sat, Aug 1st	@ CIN	Andrew Abbott (5-7)	#124	@ LAD	Yoshinobu Yamamoto (11-7)	#13
Sun, Aug 2nd	@ CIN	Chase Burns (13-1)	#23	@ LAD	Emmet Sheehan (4-8)	#118
Mon, Aug 3rd	@ MIL	Brandon Sproat (3-7)	#192
Tue, Aug 4th	@ MIL	Logan Henderson (6-1)	#45	vs CWS	Davis Martin (9-6)	#99
Wed, Aug 5th	@ MIL	Kyle Harrison (9-2)	#52	vs CWS	Sean Burke (7-6)	#74
Thu, Aug 6th	@ MIL	Dustin May (5-7)	#53	vs CWS	Luis Castillo (3-9)	#70
Fri, Aug 7th	vs NYM	Zac Thornton (2-2)	#147	vs ATH	Jack Perkins (2-7)	#87
Sat, Aug 8th	vs NYM			vs ATH	Gage Jump (4-7)	#106
Sun, Aug 9th	vs NYM	Sean Manaea (3-5)	#66	vs ATH	J.T. Ginn (8-6)	#151
Tue, Aug 11th	@ MIA	Eury Perez (5-9)	#37	@ TOR	Jameson Taillon (2-6)	#139
Wed, Aug 12th	@ MIA	Janson Junk (5-6)	#105	@ TOR	Dylan Cease (7-5)	#8
Thu, Aug 13th	@ MIA	Tyler Phillips (3-5)	#253	@ TOR	Shane Bieber (3-2)	#111
Fri, Aug 14th	vs BOS	Patrick Sandoval (1-0)	#112	@ PIT	Bubba Chandler (4-8)	#127
Sat, Aug 15th	vs BOS			@ PIT
Sun, Aug 16th	vs BOS			@ PIT
Mon, Aug 17th	vs DET			vs ARI
Tue, Aug 18th	vs DET			vs ARI
Wed, Aug 19th	vs DET			vs ARI
Fri, Aug 21st	@ LAD			vs SF
Sat, Aug 22nd	@ LAD			vs SF
Sun, Aug 23rd	@ LAD			vs SF
Mon, Aug 24th	@ SD			@ MIA
Tue, Aug 25th	@ SD			@ MIA
Wed, Aug 26th	@ SD			@ MIA
Fri, Aug 28th	@ STL			@ NYY
Sat, Aug 29th	@ STL			@ NYY
Sun, Aug 30th	@ STL			@ NYY
Tue, Sep 1st	vs SF			vs SEA
Wed, Sep 2nd	vs SF			vs SEA
Thu, Sep 3rd	vs SF			@ BAL
Fri, Sep 4th	vs LAA			@ BAL
Sat, Sep 5th	vs LAA			@ BAL
Sun, Sep 6th	vs LAA			@ BAL
Tue, Sep 8th	@ CWS			vs LAA
Wed, Sep 9th	@ CWS			vs LAA
Thu, Sep 10th	@ CWS
Fri, Sep 11th	@ CHC			vs KC
Sat, Sep 12th	@ CHC			vs KC
Sun, Sep 13th	@ CHC			vs KC
Tue, Sep 15th	vs MIL			@ TEX
Wed, Sep 16th	vs MIL			@ TEX
Thu, Sep 17th	vs MIL			@ TEX
Fri, Sep 18th	vs KC			@ TB
Sat, Sep 19th	vs KC			@ TB
Sun, Sep 20th	vs KC			@ TB
Tue, Sep 22nd	vs STL			vs CLE
Wed, Sep 23rd	vs STL			vs CLE
Thu, Sep 24th	vs STL			vs CLE
Fri, Sep 25th	@ DET			vs CHC
Sat, Sep 26th	@ DET			vs CHC
Sun, Sep 27th	@ DET			vs CHC
Mon, Apr 20th				vs DET	Jack Flaherty (3-8)	#84
Mon, May 4th				@ DET	Tyler Holton (1-4)	#128
Mon, May 18th				@ KC	Seth Lugo (4-7)	#120
Mon, Jun 8th				@ TB	Ian Seymour (8-3)	#79
Thu, Jun 18th				vs TOR	Trey Yesavage (5-5)	#102
Mon, Jun 22nd				@ COL	Ryan Feltner (4-5)	#434
Fri, Jul 10th				@ NYM	Nolan McLean (7-7)	#34
Fri, Jul 17th				vs TB	Mason Englert (0-3)	#305
Mon, Aug 10th				@ TOR
Mon, Aug 31st				vs SEA
Mon, Sep 7th				vs LAA

Who Should I Trade?

Isaac Mattson for Joe La Sorsa (2026)

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