Athletics Promote Top MLB Pitching Prospects After Severino Hits IL

The Athletics promoted two of their top MLB Pitching Prospects to the major league roster Wednesday, scrambling to patch a rotation hole after Luis Severino landed on the 15-day injured list with a strained right shoulder. Right-hander Kade Morris and fellow righty Mason Barnett were called up from Triple-A Las Vegas ahead of Tuesday’s series opener against the Chicago Cubs, thrusting both into high-leverage roles for a club clinging to postseason hopes.

Manager Mark Kotsay confirmed the moves after Severino lasted just one inning in Saturday’s 8-2 loss to the New York Yankees before exiting with shoulder discomfort. The 32-year-old veteran had been Oakland’s most reliable starter, making his absence a significant blow to a rotation already operating on thin margins. Left-hander Gage Jump, also recently promoted, was slated to start the Cubs series opener, giving the A’s three rookie arms in a five-man rotation almost overnight.

Why Did the Athletics Promote Kade Morris and Mason Barnett?

The answer is simple: necessity. Severino’s injury left a void that internal options were best positioned to fill, and the front office chose to accelerate the timeline on two arms already performing at Triple-A. Morris, widely regarded as the organization’s top pitching prospect, had been building momentum in Las Vegas with a fastball that sits 95-97 mph and a developing slider that scouts grade as a future above-average offering. Barnett, a 2022 draft pick, had shown improved command and a ground-ball profile that plays well in Oakland’s pitcher-friendly home park.

Morris’s stuff has taken a noticeable jump this season. His spin rate on the four-seamer ranks in the 78th percentile among minor league pitchers, and his chase rate on the slider has climbed to 34% — a number that suggests major league hitters will struggle to lay off the pitch. Barnett, meanwhile, relies more on sink and command, generating ground-ball rates north of 52% in his last six Triple-A starts. Neither pitcher is a finished product, but both offer profiles that can contribute immediately in limited roles.

What Are the Key Details Behind These Call-Ups?

Morris is looking for his major league debut, a moment that has been anticipated since he was ranked among the top 100 prospects in baseball by multiple outlets entering the season. Barnett, less heralded but equally necessary, provides a different look with his sinker-heavy approach and ability to induce weak contact. The A’s also have Gage Jump, who owns a 4-3 record with a 6.75 ERA across 10 starts and two relief appearances for Oakland this year. That ERA is inflated by a few rough outings, but Jump’s underlying metrics — a 4.38 FIP and 9.2 K/9 — suggest he has been somewhat unlucky.

Severino’s injury occurred on Saturday, and the A’s moved quickly, placing him on the 15-day IL and announcing the corresponding roster moves before the Cubs series. The speed of the decision indicates the front office had already been monitoring both Morris and Barnett as near-ready options, rather than reacting blindly to an emergency. According to ESPN, Kotsay spent Monday evaluating his options before settling on the two promotions.

Key Developments

• Kade Morris has never appeared in a major league game and will be making his debut whenever he takes the mound for the Athletics.
• Gage Jump was already on the active roster and was scheduled to start the series opener against the Cubs, marking his second big league start of the season.
• Luis Severino was placed on the 15-day IL on Saturday, one day after pitching just a single inning against the Yankees.
• Mason Barnett was promoted alongside Morris from Triple-A Las Vegas, giving the A’s two fresh arms in a rotation that lost its most experienced starter.
• The Athletics’ decision to promote prospects rather than seek an external trade option suggests confidence in their player development pipeline and a willingness to let young arms learn at the highest level.

What This Means for Oakland’s Playoff Push

The A’s are threading a needle that defines modern small-market baseball: compete now while developing the next wave. Promoting Morris and Barnett instead of trading for a veteran rental signals that the front office views this season as part of a longer arc, not a one-shot window. Oakland has consistently been among the fastest organizations to promote top pitching prospects, and the track record includes several arms who stabilized after rocky first months.

There is legitimate risk here. Rookie pitchers in their first extended major league exposure typically see their ERA spike by 1.0 to 1.5 runs compared to Triple-A, and the A’s cannot afford many blowup outings in a tight wild-card race. But the counterargument is compelling: Morris’s stuff plays at any level, and Barnett’s ground-ball tendencies should limit damage. If either pitcher can provide five competitive innings per start, the rotation holds together until Severino returns. The front office brass clearly decided that the upside of these two prospects outweighed the safety of a marginal veteran acquisition.

Fantasy baseball managers should take note. Morris, in particular, is worth a speculative add in deeper leagues — his strikeout ceiling is real, and even a rough debut could produce usable streaming value. Barnett is more of a watch-and-wait arm, but his ground-ball profile makes him an interesting dynasty stash. The next two weeks will tell us whether these MLB Pitching Prospects are ready for the spotlight or need more seasoning in the minors.