Who Should I Trade?

Isaac Mattson for Zach Pop (2026)

Summary
Stats
Projections
News & Notes
Schedule

Who Should I Trade? Player Summaries
	Experts' Pick	Experts' Pick
	Isaac Mattson RP - PIT	Zach Pop RP - MIA
Expert Recommendation	50% Recommended by 1 of 2 experts	50% Recommended by 1 of 2 experts
Rankings

Rest of Season	# 391	‐
VBR	# 743	‐

Projections

Strikeouts	11	4
Wins	1	0
Saves	0	0
ERA	4.40	4.09
WHIP	1.44	1.48

Misc

Injury Alert	MiLB	MiLB

Expert Ranks

Kevin Spinelli KevScores	# 418	# 195

Kelly Kirby FantasyPros	# 422	‐

Who Should I Trade? Player Statistics
	Isaac Mattson RP - PIT	Zach Pop RP - MIA
2026 Stats


Games Played	36	7

Games Started	0	1

Innings Pitched	34.2	7.1

Wins	0	0

Losses	0	0

Saves	0	0

Blown Saves	2	0

Holds	8	0

Hits Allowed	38	5

Earned Runs	19	3

Home Runs Allowed	3	0

Strikeouts	33	6

Walks	16	3

ERA	4.93	3.68

WHIP	1.56	1.09

Who Should I Trade? Player Projections
	Isaac Mattson RP - PIT	Zach Pop RP - MIA
2026 Projections


Games Played	15	17

Games Started	0	0

Innings Pitched	11.9	4.4

Wins	1	0

Losses	1	1

Saves	0	0

Blown Saves	0	0

Holds	1	1

Hits Allowed	11	5

Earned Runs	6	2

Home Runs Allowed	2	1

Strikeouts	11	4

Walks	6	2

ERA	4.40	4.09

WHIP	1.44	1.48

Who Should I Trade? Player Notes
	Isaac Mattson RP - PIT	Zach Pop RP - MIA
News
	The Pirates optioned RHP Isaac Mattson to Triple-A Indianapolis. Ari Koslow Sun, Aug 2nd	Phillies RHP Zach Pop elected free agency. Ari Koslow Sat, Jun 6th
	The Pirates recalled RHP Isaac Mattson from Triple-A Indianapolis. Ari Koslow Sat, Aug 1st	The Phillies designated Zach Pop for assignment. Ari Koslow Sat, May 30th
	The Pirates optioned RHP Isaac Mattson to Triple-A Indianapolis. Ari Koslow Wed, Jul 29th	Zach Pop began a rehab assignment in Triple-A on Saturday. Ari Koslow Sat, May 9th
	The Pirates recalled RHP Isaac Mattson from Triple-A Indianapolis. Ari Koslow Sat, Jun 13th	The Phillies placed RHP Zach Pop on the 15-day injured list with a right calf strain. Ari Koslow Wed, Apr 15th
	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			Zach Pop RP - MIA
Thu, Mar 26th	@ NYM	Freddy Peralta (5-9)	#50
Sat, Mar 28th	@ NYM	David Peterson (6-7)	#88	vs COL	Michael Lorenzen (3-10)	#432
Sun, Mar 29th	@ NYM	Nolan McLean (7-7)	#34	vs COL	Jose Quintana (2-3)	#428
Mon, Mar 30th	@ CIN	Chase Burns (13-1)	#26	vs CWS	Davis Martin (9-5)	#82
Tue, Mar 31st	@ CIN	Brandon Williamson (2-3)	#327	vs CWS	Erick Fedde (6-6)	#393
Wed, Apr 1st	@ CIN	Andrew Abbott (5-7)	#109	vs CWS	Shane Smith (0-2)	#218
Fri, Apr 3rd	vs BAL	Kyle Bradish (7-10)	#43	@ NYY	Will Warren (8-5)	#65
Sat, Apr 4th	vs BAL	Shane Baz (4-10)	#63	@ NYY	Ryan Weathers (4-7)	#64
Sun, Apr 5th	vs BAL	Chris Bassitt (4-4)	#135	@ NYY	Max Fried (4-3)	#14
Mon, Apr 6th	vs SD	German Marquez (4-2)	#381	vs CIN	Brandon Williamson (2-3)	#327
Tue, Apr 7th	vs SD	Nick Pivetta (1-2)	#74	vs CIN	Andrew Abbott (5-7)	#109
Wed, Apr 8th	vs SD	Michael King (6-8)	#57	vs CIN	Brady Singer (5-10)	#152
Fri, Apr 10th	@ CHC	Shota Imanaga (7-9)	#28	@ DET	Keider Montero (8-6)	#103
Sat, Apr 11th	@ CHC	Edward Cabrera (5-4)	#80	@ DET	Casey Mize (4-6)	#37
Sun, Apr 12th	@ CHC	Jameson Taillon (2-6)	#145	@ DET	Tarik Skubal (7-5)	#2
Mon, Apr 13th	vs WSH	Cade Cavalli (8-5)	#54	@ ATL	Grant Holmes (6-4)	#180
Tue, Apr 14th	vs WSH	PJ Poulin (3-0)	#350	@ ATL	Reynaldo Lopez (4-3)	#112
Wed, Apr 15th	vs WSH	Jake Irvin (2-5)	#164	@ ATL	Bryce Elder (7-6)	#139
Thu, Apr 16th	vs WSH	Foster Griffin (12-3)	#53
Fri, Apr 17th	vs TB	Nick Martinez (10-3)	#99	vs MIL	Coleman Crow (0-1)	#228
Sat, Apr 18th	vs TB	Drew Rasmussen (10-5)	#17	vs MIL	Brandon Woodruff (2-2)
Sun, Apr 19th	vs TB	Shane McClanahan (9-6)	#68	vs MIL	Jacob Misiorowski (11-5)	#5
Tue, Apr 21st	@ TEX	Kumar Rocker (4-8)	#81	vs STL	Dustin May (5-7)	#56
Wed, Apr 22nd	@ TEX	Jack Leiter (3-7)	#126	vs STL	Kyle Leahy (7-4)	#123
Thu, Apr 23rd	@ TEX	Jacob deGrom (7-7)	#11
Fri, Apr 24th	@ MIL	Brandon Woodruff (2-2)		@ SF	Adrian Houser (2-7)	#189
Sat, Apr 25th	@ MIL	Jacob Misiorowski (11-5)	#5	@ SF	Robbie Ray (10-6)	#97
Sun, Apr 26th	@ MIL	Kyle Harrison (8-2)	#44	@ SF	Landen Roupp (7-10)	#62
Mon, Apr 27th	vs STL	Dustin May (5-7)	#56	@ LAD	Yoshinobu Yamamoto (11-7)	#13
Tue, Apr 28th	vs STL	Kyle Leahy (7-4)	#123	@ LAD	Shohei Ohtani (8-2)	#1
Wed, Apr 29th	vs STL	Andre Pallante (11-6)	#111	@ LAD	Tyler Glasnow (3-0)	#60
Thu, Apr 30th	vs STL	Hunter Dobbins (2-1)	#166
Fri, May 1st	vs CIN	Brady Singer (5-10)	#152	vs PHI	Zack Wheeler (10-2)	#6
Sat, May 2nd	vs CIN	Rhett Lowder (3-7)	#280	vs PHI	Andrew Painter (1-8)	#213
Sun, May 3rd	vs CIN	Chase Burns (13-1)	#26	vs PHI	Jesus Luzardo (9-5)	#10
Tue, May 5th	@ ARI	Eduardo Rodriguez (10-3)	#127	vs BAL	Chris Bassitt (4-4)	#135
Wed, May 6th	@ ARI	Michael Soroka (8-3)	#69	vs BAL	Brandon Young (8-2)	#132
Thu, May 7th	@ ARI	Zac Gallen (3-9)	#232	vs BAL	Cade Povich (1-1)	#215
Fri, May 8th	@ SF	Robbie Ray (10-6)	#97	vs WSH	Foster Griffin (12-3)	#53
Sat, May 9th	@ SF	Landen Roupp (7-10)	#62	vs WSH	Richard Lovelady (2-4)	#405
Sun, May 10th	@ SF	Tyler Mahle (3-9)	#100	vs WSH	Cade Cavalli (8-5)	#54
Tue, May 12th	vs COL	Michael Lorenzen (3-10)	#432	@ MIN	Bailey Ober (7-3)	#84
Wed, May 13th	vs COL	Jose Quintana (2-3)	#428	@ MIN	Simeon Woods Richardson (1-7)
Thu, May 14th	vs COL	Chase Dollander (3-3)		@ MIN	Zebby Matthews (4-8)	#131
Fri, May 15th	vs PHI	Aaron Nola (3-9)	#55	@ TB	Ian Seymour (8-3)	#93
Sat, May 16th	vs PHI	Cristopher Sanchez (14-4)	#4	@ TB	Nick Martinez (10-3)	#99
Sun, May 17th	vs PHI	Zack Wheeler (10-2)	#6	@ TB	Drew Rasmussen (10-5)	#17
Tue, May 19th	@ STL	Matthew Liberatore (5-8)	#118	vs ATL	Martin Perez (7-6)	#204
Wed, May 20th	@ STL	Michael McGreevy (4-9)	#98	vs ATL	Chris Sale (12-6)	#7
Thu, May 21st	@ STL	Dustin May (5-7)	#56	vs ATL	Spencer Strider (4-2)	#317
Fri, May 22nd	@ TOR	Kevin Gausman (5-10)	#25	vs NYM	Tobias Myers (0-2)	#206
Sat, May 23rd	@ TOR	Patrick Corbin (3-4)	#295	vs NYM	Freddy Peralta (5-9)	#50
Sun, May 24th	@ TOR	Dylan Cease (7-5)	#8	vs NYM	Christian Scott (3-3)	#45
Mon, May 25th	vs CHC	Ben Brown (4-2)	#140	@ TOR	Trey Yesavage (5-5)	#73
Tue, May 26th	vs CHC	Jordan Wicks (0-2)	#329	@ TOR	Braydon Fisher (3-3)	#178
Wed, May 27th	vs CHC	Jameson Taillon (2-6)	#145	@ TOR	Kevin Gausman (5-10)	#25
Thu, May 28th	vs CHC	Colin Rea (8-8)	#169
Fri, May 29th	vs MIN	Taj Bradley (9-4)	#49	@ NYM	Freddy Peralta (5-9)	#50
Sat, May 30th	vs MIN	Bailey Ober (7-3)	#84	@ NYM	Christian Scott (3-3)	#45
Sun, May 31st	vs MIN	Zebby Matthews (4-8)	#131	@ NYM	Nolan McLean (7-7)	#34
Tue, Jun 2nd	@ HOU	Mike Burrows (4-9)	#221	@ WSH	Richard Lovelady (2-4)	#405
Wed, Jun 3rd	@ HOU	Spencer Arrighetti (7-5)	#278	@ WSH	Andrew Alvarez (2-3)	#201
Thu, Jun 4th	@ HOU	Kai-Wei Teng (5-6)	#260
Fri, Jun 5th	@ ATL	Martin Perez (7-6)	#204	vs TB	Drew Rasmussen (10-5)	#17
Sat, Jun 6th	@ ATL	Spencer Strider (4-2)	#317	vs TB	Shane McClanahan (9-6)	#68
Sun, Jun 7th	@ ATL	Bryce Elder (7-6)	#139	vs TB	Griffin Jax (6-9)	#48
Tue, Jun 9th	vs LAD	Eric Lauer (6-5)	#312	vs ARI	Zac Gallen (3-9)	#232
Wed, Jun 10th	vs LAD	Shohei Ohtani (8-2)	#1	vs ARI	Ryne Nelson (3-5)	#198
Thu, Jun 11th	vs LAD	Justin Wrobleski (11-3)	#92	vs ARI	Merrill Kelly (8-9)	#130
Fri, Jun 12th	vs MIA	Sandy Alcantara (12-6)	#58	@ PIT	Braxton Ashcraft (11-4)	#31
Sat, Jun 13th	vs MIA	Lake Bachar (1-2)	#216	@ PIT	Bubba Chandler (4-8)	#102
Sun, Jun 14th	vs MIA	Max Meyer (9-1)	#86	@ PIT	Paul Skenes (9-9)	#3
Mon, Jun 15th	@ ATH	J.T. Ginn (8-6)	#160	@ PHI	Zack Wheeler (10-2)	#6
Tue, Jun 16th	@ ATH	Jack Perkins (2-7)	#94	@ PHI	Jesus Luzardo (9-5)	#10
Wed, Jun 17th	@ ATH	Aaron Civale (5-7)	#186	@ PHI	Andrew Painter (1-8)	#213
Fri, Jun 19th	@ COL	Kyle Freeland (3-10)	#320	vs SF	Landen Roupp (7-10)	#62
Sat, Jun 20th	@ COL	Tomoyuki Sugano (11-4)	#434	vs SF	Trevor McDonald (3-7)
Sun, Jun 21st	@ COL	Michael Lorenzen (3-10)	#432	vs SF	Logan Webb (7-7)	#16
Tue, Jun 23rd	vs SEA	George Kirby (8-9)	#19	vs TEX	Cal Quantrill (4-4)	#272
Wed, Jun 24th	vs SEA	Bryan Woo (7-8)	#12	vs TEX	Jacob deGrom (7-7)	#11
Thu, Jun 25th	vs SEA	Bryce Miller (4-5)	#33
Fri, Jun 26th	vs CIN	Andrew Abbott (5-7)	#109	@ STL	Michael McGreevy (4-9)	#98
Sat, Jun 27th	vs CIN	Chase Burns (13-1)	#26	@ STL	Andre Pallante (11-6)	#111
Sun, Jun 28th	vs CIN	Brady Singer (5-10)	#152	@ STL	Kyle Leahy (7-4)	#123
Mon, Jun 29th	@ PHI	Aaron Nola (3-9)	#55	@ COL	Sean Sullivan (0-3)	#424
Tue, Jun 30th	@ PHI	Cristopher Sanchez (14-4)	#4	@ COL	Tanner Gordon (0-2)	#421
Wed, Jul 1st	@ PHI	Zack Wheeler (10-2)	#6	@ COL	Kyle Freeland (3-10)	#320
Thu, Jul 2nd	@ PHI	Alan Rangel (0-3)	#265	@ COL	Michael Lorenzen (3-10)	#432
Fri, Jul 3rd	@ WSH	Foster Griffin (12-3)	#53	@ ATH	Jack Perkins (2-7)	#94
Sat, Jul 4th	@ WSH	Carson Palmquist (0-1)	#274	@ ATH	Aaron Civale (5-7)	#186
Sun, Jul 5th	@ WSH	Cade Cavalli (8-5)	#54	@ ATH	Gage Jump (4-7)	#83
Tue, Jul 7th	vs ATL	Hurston Waldrep (0-1)	#401	vs SEA	Bryan Woo (7-8)	#12
Wed, Jul 8th	vs ATL	Grant Holmes (6-4)	#180	vs SEA	George Kirby (8-9)	#19
Thu, Jul 9th	vs ATL	Bryce Elder (7-6)	#139	vs SEA	Bryce Miller (4-5)	#33
Sat, Jul 11th	vs MIL	Shane Drohan (6-4)	#71	vs CLE	Tanner Bibee (4-11)	#51
Sun, Jul 12th	vs MIL	Robert Gasser (3-4)	#110	vs CLE	Joey Cantillo (8-6)	#85
Sat, Jul 18th	@ CLE	Logan Allen (0-0)	#183	@ MIL	Shane Drohan (6-4)	#71
Sun, Jul 19th	@ CLE	Joey Cantillo (8-6)	#85	@ MIL	Robert Gasser (3-4)	#110
Mon, Jul 20th	@ NYY	Ryan Weathers (4-7)	#64	@ HOU	Ronel Blanco (0-1)	#128
Wed, Jul 22nd	@ NYY	Max Fried (4-3)	#14	@ HOU	Peter Lambert (8-5)	#116
Fri, Jul 24th	vs CHC	Matthew Boyd (7-1)	#38	vs SD	German Marquez (4-2)	#381
Sat, Jul 25th	vs CHC	Shota Imanaga (7-9)	#28	vs SD	Randy Vasquez (6-6)	#321
Sun, Jul 26th	vs CHC	Jameson Taillon (2-6)	#145	vs SD	Walker Buehler (6-5)	#243
Mon, Jul 27th	vs ARI	Merrill Kelly (8-9)	#130	vs PHI	Zack Wheeler (10-2)	#6
Tue, Jul 28th	vs ARI	Brandon Pfaadt (6-1)	#90	vs PHI	Aaron Nola (3-9)	#55
Wed, Jul 29th	vs ARI	Eduardo Rodriguez (10-3)	#127	vs PHI	Jesus Luzardo (9-5)	#10
Thu, Jul 30th	@ CIN	Rhett Lowder (3-7)	#280	@ NYM	Nolan McLean (7-7)	#34
Fri, Jul 31st	@ CIN	Hunter Greene (2-2)	#29	@ NYM	Kodai Senga (0-8)	#133
Sat, Aug 1st	@ CIN	Andrew Abbott (5-7)	#109	@ NYM	Zac Thornton (2-2)	#158
Sun, Aug 2nd	@ CIN	Chase Burns (13-1)	#26	@ NYM	Robert Stock (0-1)	#296
Mon, Aug 3rd	@ MIL	Brandon Sproat (3-7)	#151
Tue, Aug 4th	@ MIL	Logan Henderson (5-1)	#39	@ ATL	Grant Holmes (6-4)	#180
Wed, Aug 5th	@ MIL	Kyle Harrison (8-2)	#44	@ ATL	Bryce Elder (7-6)	#139
Thu, Aug 6th	@ MIL	Shane Drohan (6-4)	#71	@ ATL	Martin Perez (7-6)	#204
Fri, Aug 7th	vs NYM			vs LAA	Jose Soriano (9-6)	#46
Sat, Aug 8th	vs NYM	Sean Manaea (2-5)	#75	vs LAA	Walbert Urena (7-7)	#261
Sun, Aug 9th	vs NYM	Christian Scott (3-3)	#45	vs LAA	Grayson Rodriguez (3-3)	#129
Tue, Aug 11th	@ MIA	Eury Perez (5-8)	#41	vs PIT	Paul Skenes (9-9)	#3
Wed, Aug 12th	@ MIA	Janson Junk (5-6)	#119	vs PIT	Braxton Ashcraft (11-4)	#31
Thu, Aug 13th	@ MIA	Tyler Phillips (3-5)	#263	vs PIT	Carmen Mlodzinski (6-3)	#113
Fri, Aug 14th	vs BOS			@ CIN
Sat, Aug 15th	vs BOS			@ CIN
Sun, Aug 16th	vs BOS			@ CIN
Mon, Aug 17th	vs DET			@ PHI
Tue, Aug 18th	vs DET			@ PHI
Wed, Aug 19th	vs DET			@ PHI
Fri, Aug 21st	@ LAD			vs WSH
Sat, Aug 22nd	@ LAD			vs WSH
Sun, Aug 23rd	@ LAD			vs WSH
Mon, Aug 24th	@ SD			vs BOS
Tue, Aug 25th	@ SD			vs BOS
Wed, Aug 26th	@ SD			vs BOS
Fri, Aug 28th	@ STL			@ WSH
Sat, Aug 29th	@ STL			@ WSH
Sun, Aug 30th	@ STL			@ WSH
Tue, Sep 1st	vs SF			@ KC
Wed, Sep 2nd	vs SF			@ KC
Thu, Sep 3rd	vs SF			@ KC
Fri, Sep 4th	vs LAA			vs CHC
Sat, Sep 5th	vs LAA			vs CHC
Sun, Sep 6th	vs LAA			vs CHC
Tue, Sep 8th	@ CWS			vs NYM
Wed, Sep 9th	@ CWS			vs NYM
Thu, Sep 10th	@ CWS
Fri, Sep 11th	@ CHC			vs LAD
Sat, Sep 12th	@ CHC			vs LAD
Sun, Sep 13th	@ CHC			vs LAD
Tue, Sep 15th	vs MIL			@ ARI
Wed, Sep 16th	vs MIL			@ ARI
Thu, Sep 17th	vs MIL
Fri, Sep 18th	vs KC			@ SD
Sat, Sep 19th	vs KC			@ SD
Sun, Sep 20th	vs KC			@ SD
Tue, Sep 22nd	vs STL			@ CHC
Wed, Sep 23rd	vs STL			@ CHC
Thu, Sep 24th	vs STL			@ CHC
Fri, Sep 25th	@ DET			vs ATL
Sat, Sep 26th	@ DET			vs ATL
Sun, Sep 27th	@ DET			vs ATL
Fri, Mar 27th				vs COL	Kyle Freeland (3-10)	#320
Thu, Apr 9th				vs CIN	Rhett Lowder (3-7)	#280
Mon, Apr 20th				vs STL	Michael McGreevy (4-9)	#98
Mon, May 4th				vs PHI	Aaron Nola (3-9)	#55
Mon, May 18th				vs ATL	JR Ritchie (1-2)	#288
Mon, Jun 1st				@ WSH	Cade Cavalli (8-5)	#54
Mon, Jun 22nd				vs TEX	Tyler Alexander (1-2)	#175
Fri, Jul 10th				vs CLE	Parker Messick (8-6)	#42
Fri, Jul 17th				@ MIL	Logan Henderson (5-1)	#39
Tue, Jul 21st				@ HOU	Tatsuya Imai (6-4)	#142
Mon, Aug 31st				@ WSH
Mon, Sep 7th				vs NYM
Mon, Sep 14th				@ ARI

Who Should I Trade?

Isaac Mattson for Zach Pop (2026)

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