The Athletics have shut down Gage Jump for the rest of the year, placing the left-hander on the 15-day injured list retroactive to September 13 with a left shoulder impingement. Joe Rock was brought up from Triple-A to fill the roster spot.
Jump’s season ended after he was pulled from his latest start following only 44 pitches across two innings. There had been some hope he might still get back on the mound before the schedule wrapped up, but that possibility is gone now. Even if the injury is mild, the IL move effectively closes the book on his rookie campaign, since the 15-day stint runs past the end of the regular season and the A’s are not going to the playoffs.
He’ll finish with a 5.47 ERA over 98 2/3 innings, a line that can look rough for a pitcher who opened the year on some Top 100 prospect lists. But the deeper numbers are more forgiving.
Jump struck out 24.7% of the hitters he faced, a rate that sits above average. His 10.5% walk rate and 38.4% ground-ball rate were a little below par, but not by much.
Some bad luck also worked against him: a .345 batting average on balls in play and a 67.1% strand rate helped push runs across. His 4.02 FIP and 4.15 SIERA paint a much friendlier picture, both more than a run better than his ERA.
If he’s back to full strength for 2027, Jump will have a chance to keep building, and that season is expected to be the last for the A’s at Sutter Health Park. The organization has been rebuilding for several years, and while the position-player side has shown some progress, the pitching group has not delivered nearly as much. That leaves the 2027 rotation very much up for grabs.
Luis Severino is presumably headed back on his player option. He has voiced frustration with the quality of the club’s amenities in West Sacramento, but he isn’t likely to top $22 million on the open market after a notable lat strain and a stretch of middling results dating back to the start of last season. Jeffrey Springs also looks like a candidate for his club option to be declined after posting a 5.93 ERA this year.
After Severino, the A’s should have a lot of openings for a group that is still trying to establish itself. Jump would be part of that mix with Jacob Lopez, Jack Perkins, Brady Basso, J.T.
Ginn, Gunnar Hoglund, Kade Morris, Mason Barnett and others. Jamie Arnold is also in the picture, though his timetable remains unclear after a frightening recent injury.
For the rest of 2026, the A’s rotation will feature Springs, Perkins, Basso and Lopez, plus a mix of spot starts and bullpen games.
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