2025 Stats
W-L
0-0
ERA
0.00
WHIP
0.00
K
0
SV
0
Rest-of-Season Projections
2025 Fantasy Outlook
Mathews was a workhorse at Stanford, but he only averaged 91.6 mph with his fastball as a junior and was selected by the Cardinals in the fourth round of the 2023 draft. He showed up in 2024 sitting in the mid-90s (touching 98 mph) with above-average ride on that pitch and was arguably the top breakout pitching prospect of the year. The 6-foot-5 lefty logged a 2.76 ERA, 0.98 WHIP and a 202:49 K:BB in 143.1 innings across 26 starts, beginning the year at Single-A and finishing the year at Triple-A. In addition to his massively improved fastball, Mathews boasts a borderline plus-plus changeup and a comfortably above-average slider. He struggled in a small sample at Triple-A, with two five-walk starts bringing down his numbers at that level as he adjusted to the balls and strikes challenge system. Even so, he should be given every opportunity to win a spot in the big-league rotation this spring, and he will spend the bulk of his age-24 season in the majors, barring injury or a significant skills decline. Read Past Outlooks

Activated from Triple-A IL
Mathews (shoulder) was activated from Triple-A Memphis' 7-day injured list Saturday.
ANALYSIS
After missing more than a month of action with left shoulder inflammation, Mathews tossed five scoreless innings with an 8:0 K:BB in two rehab outings before being activated. His first outing back in the Memphis rotation didn't go as well, as he yielded two runs with a 3:3 K:BB over 2.2 frames Saturday. The southpaw has permitted nine runs with a 10:18 K:BB in 13 innings covering four starts with Memphis this season, so he'll be looking to get back on track in June now that he has hopefully put his shoulder issue behind him.
After missing more than a month of action with left shoulder inflammation, Mathews tossed five scoreless innings with an 8:0 K:BB in two rehab outings before being activated. His first outing back in the Memphis rotation didn't go as well, as he yielded two runs with a 3:3 K:BB over 2.2 frames Saturday. The southpaw has permitted nine runs with a 10:18 K:BB in 13 innings covering four starts with Memphis this season, so he'll be looking to get back on track in June now that he has hopefully put his shoulder issue behind him.
Pitching Stats
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Minor League Game Log

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Minor League Left/Right Pitching Splits (AAA)
Since 2023
-19%
BAA vs RHP
2025
-13%
BAA vs LHP
BAA | K | BB | H | HR | |
---|---|---|---|---|---|
Since 2023vs Left | .323 | 5 | 11 | 10 | 0 |
Since 2023vs Right | .263 | 27 | 21 | 21 | 3 |
2025vs Left | .250 | 2 | 5 | 3 | 0 |
2025vs Right | .286 | 8 | 13 | 10 | 2 |
2024vs Left | .368 | 3 | 6 | 7 | 0 |
2024vs Right | .244 | 19 | 8 | 11 | 1 |
2023vs Left | 0 | 0 | 0 | 0 | 0 |
2023vs Right | 0 | 0 | 0 | 0 | 0 |
Prospect Rankings History
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Defensive Stats
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Starting rehab assignment
Mathews (shoulder) was sent to the rookie-level Florida Complex League Cardinals to begin a rehab assignment Monday.
ANALYSIS
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Ready to return
Mathews (shoulder) will make a rehab start this week in the rookie-level Florida Complex League, Derrick Goold of the St. Louis Post-Dispatch reports.
ANALYSIS
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Set to resume throwing
Mathews (shoulder) will resume a throwing program Wednesday or Thursday, John Denton of MLB.com reports.
ANALYSIS
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On Triple-A IL with sore shoulder
Cardinals president of baseball operations John Mozeliak said that Mathews was placed on the 7-day injured list at Triple-A Memphis on Sunday due to left shoulder soreness, Daniel Guerrero of the St. Louis Post-Dispatch reports.
ANALYSIS
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Goes on 7-day IL at Triple-A
Triple-A Memphis placed Mathews on the 7-day injured list Sunday due to an undisclosed injury.
ANALYSIS
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