The Rangers optioned Corniell to Triple-A Round Rock on Wednesday.
Corniell was saddled with the loss Tuesday in Miami in his first appearance in the majors this season, allowing five runs on seven hits and two walks with three strikeouts over 3.1 innings. Winston Santos was recalled from Double-A Frisco to join the Texas bullpen as a replacement for Corniell, who will likely go back into the rotation at Round Rock.
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Rangers' Jose Corniell: Takes loss in season debut
Rotowire
Corniell (0-1) took the loss against the Marlins on Tuesday, allowing five runs on seven hits and two walks with three strikeouts over 3.1 innings.
Corniell relieved Cal Quantrill in the third inning and struggled, allowing one run in the fourth before enduring a four-run fifth. In just two major-league appearances between 2025 and 2026, the 23-year-old has surrendered eight earned runs across just five frames. It's unclear what his role will be moving forward, but if he remains part of the equation for replacing Jack Leiter (ankle), he could pitch again this weekend against the Blue Jays.
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Rangers' Jose Corniell: Called up Sunday
Rotowire
The Rangers recalled Corniell from Triple-A Round Rock on Sunday.
The right-hander will get a look with the Rangers for the first time this season after struggling to a 6.08 ERA, 1.72 WHIP and 19:10 K:BB across 26.2 innings with Round Rock. Corniell has primarily worked as a starter at Triple-A, but it's not yet clear if he's seen as a candidate to replace Jack Leiter (ankle) in the rotation.
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Rangers' Jose Corniell: Still in 'dead arm' phase
Rotowire
Corniell remains unavailable to pitch as he goes through a "dead arm" phase, Jeff Wilson of AllDLLS.com reports.
Corniell missed nearly all of spring training and it's unclear when he might be ready to pitch in games. The 22-year-old is likely to be part of the rotation at Double-A Frisco once he's physically ready. Corniell missed all of 2024 and much of 2025 while recovering from UCL surgery, so he needs to make up for lost time.
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Rangers' Jose Corniell: Recalled to majors
Rotowire
The Rangers recalled Corniell from Triple-A Round Rock on Friday.
Corniell will join the big-league squad for the first time in his career Friday to help replenish the Rangers' bullpen depth following the placement of Chris Martin (undisclosed) and Cole Winn (undisclosed) on the IL. Corniell has split time between Double-A and Triple-A this season, posting a 1.67 ERA and 0.71 WHIP across 32.1 innings between the two levels.
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Rangers' Jose Corniell: Aims for July or August
Rotowire
Corniell (elbow) has begun playing catch and could be game-ready by July or August, Jeff Wilson of AllDLLS.com reports.
Corniell is 10 months removed from a right UCL repair. The 21-year-old is on the Rangers' 40-man roster but has yet to advance past A-ball, so he's not a real candidate to see action in the majors this season. He could, however, be a candidate for the 60-day injured list if the Rangers need to free up a 40-man roster spot.
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Rangers' Jose Corniell: Set for UCL surgery
Rotowire
Corniell will undergo season-ending surgery to repair the UCL in his right elbow, Evan Grant of the Dallas Morning News reports.
Corniell has been sidelined all season with an elbow issue. While his injury was initially referred to as inflammation when he went on the 7-day injured list at Double-A Frisco back in early April, subsequent testing revealed a more serious concern. It's not yet clear whether Corniell will have a full Tommy John surgery or internal brace procedure, but in either case he won't pitch again in 2024 and is likely to miss at least a large chunk, if not all, of the 2025 season.
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Rangers' Jose Corniell: Dealing with elbow inflammation
Rotowire
Corniell will open the season on the injured list at Double-A Frisco with elbow inflammation, Jim Callis of MLB.com reports.
This is an ominous injury designation for the 20-year-old righty. Corniell has outstanding control for his age (7.3 BB% in 58.1 innings at High-A) and a quality four-pitch mix headlined by a 94-mph fastball and plus 84-mph sweeper. The fact he was assigned to Double-A before turning 21 illustrates how advanced Corniell is, but this elbow injury could be his first big setback. Per Callis, Corniell is expected back in early June.
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Rangers' Jose Corniell: Moved to Double-A
Rotowire
The Rangers optioned Corniell to Double-A Frisco on Sunday, Jeff Wilson of RangersToday.com reports.
Corniell will get his first taste of the Double-A level to begin the 2024 campaign after he split the 2023 season between Single-A Down East and High-A Hickory. Over 101.2 innings between the two affiliates, Corniell posted a 2.92 ERA, 0.99 WHIP and 119:31 K:BB.
