Mautz struck out one batter and allowed three hits and one walk over two innings of relief in Saturday's 10-7 loss to the Rockies.
In his previous appearance Wednesday against the Dodgers, Mautz made his first MLB start, but he was chased from the game after yielding three earned runs on two hits and three walks over one inning. He was sharper in a relief appearance at Coors Field over the weekend, but Mautz's performance probably won't earn him another look in the rotation in the near future. Cooper Hjerpe struck out six over four shutout innings of relief during Sunday's 10-8 win and would probably be next in line to start if the Cardinals expand their rotation to six men at any point over the final three weeks.
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Cardinals' Brycen Mautz: Making first MLB start
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Mautz will start Wednesday's game against the Dodgers.
He has made two relief appearances with the Cardinals this season, but Mautz will be making his first career start in the majors Wednesday in a tough matchup opposite Yoshinobu Yamamoto under the bright lights in Los Angeles. The lefty Mautz, a second-round pick in 2022, threw 61 pitches against the Pirates in his most recent appearance Aug. 29, allowing four runs on five hits and one walk while striking out eight across three relief innings.
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Cardinals' Brycen Mautz: Recalled from Memphis
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The Cardinals recalled Mautz from Triple-A Memphis on Saturday.
Mautz pitched three innings out of the bullpen during his lone MLB appearance this season, giving up two earned runs on four hits and two walks while fanning two batters May 25. He has since transitioned to working as more of a traditional reliever at Memphis and figures to continue doing so now that he's back with the parent club. Caleb Ferguson was designated for assignment in a corresponding move.
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Cardinals' Brycen Mautz: Pitching in relief at Memphis
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Mautz's last two appearances at Triple-A Memphis have come in relief. He's tossed four scoreless frames with a 4:0 K:BB in those outings.
The lefty's two relief outings came after a five-start stretch that saw him post a 4.58 ERA and 16:22 K:BB over 19.2 innings. It's unclear whether Mautz's shift to the bullpen is permanent, but if it is, it could lead to a quicker big-league promotion. Righties have slashed .222/.361/.349 off Mautz this season, while lefties have hit only .189/.324/.267.
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Cardinals' Brycen Mautz: Optioned after MLB debut
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The Cardinals optioned Mautz to Triple-A Memphis on Monday, Derrick Goold of the St. Louis Post-Dispatch reports.
Mautz made his major-league debut out of the bullpen during Monday's 5-1 loss to Milwaukee, getting charged with two runs over three innings. The left-hander helped keep the rest of St. Louis' bullpen arms fresh and will now rejoin the rotation at Memphis.
Mautz and the Cardinals won't face the Reds on Sunday after the game was postponed due to inclement weather.
The two teams will make up the game as part of a split doubleheader Aug. 17. After being promoted from Triple-A Memphis earlier Sunday, Mautz had been scheduled to start the series finale in Cincinnati. As a result of the postponement, the Cardinals no longer have a need for a temporary sixth starter, so Mautz could be optioned back to Memphis before making his MLB debut.
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Cardinals' Brycen Mautz: Recalled ahead of MLB debut
Rotowire
The Cardinals recalled Mautz from Triple-A Memphis ahead of his start against the Reds on Sunday.
St. Louis needed another starter after Saturday's doubleheader against Cincinnati and will turn to Mautz to make his major-league debut in Sunday's series finale. The 24-year-old southpaw was named the Cardinals' Minor League Pitcher of the Year in 2025 after a strong season with Double-A Springfield and has pitched well in Triple-A this season, sporting a 2.90 ERA, 1.37 WHIP and 43:24 K:BB across 40.1 innings. Matt Svanson was optioned to Memphis in a corresponding move.
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Cardinals' Brycen Mautz: Slated for major-league debut
Rotowire
Mautz will be recalled from Triple-A Memphis to start Sunday against the Reds, Derrick Goold of the St. Louis Post-Dispatch reports.
The Cardinals need an extra starter after Saturday's doubleheader, and it will be the lefty Mautz getting the call for his major-league debut. Added to the 40-man roster last November, Mautz has pitched to a 2.90 ERA, 1.37 WHIP and 43:24 K:BB over 40.1 innings with Memphis so far. The 2022 second-round pick has allowed more than two earned runs in just one of his nine starts this season.
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Cardinals' Brycen Mautz: Dropped from big-league camp
Rotowire
The Cardinals optioned Mautz to Triple-A Memphis on Monday.
The Cardinals previously hadn't dismissed the possibility of Mautz making the team as a reliever, but he will begin the season in the rotation at Triple-A Memphis. Mautz posted a 2.98 ERA, 1.11 WHIP and 134:33 K:BB over 114.2 innings at Double-A Springfield in 2025.
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Cardinals' Brycen Mautz: In mix to fill relief role
Rotowire
Mautz is under consideration for a spot on the Cardinals' Opening Day roster in a relief or hybrid role, Derrick Goold of the St. Louis Post-Dispatch reports.
Mautz was added to the 40-man roster this offseason following a breakout year as a starter at Double-A Springfield, where he posted a 2.98 ERA, 1.11 WHIP and 134:33 K:BB over 114.2 innings. JoJo Romero is locked into one left-handed bullpen spot for the Cardinals, but he remains a trade candidate, and even if Romero stays put the team likely has at least one other lefty spot up for grabs. Mautz could fill that slot or be used in a hybrid role that would allow him to also make some spot starts. However, the most likely scenario is the southpaw opens the season in the Triple-A Memphis rotation to continue his development as a starting pitcher.
