The Oakland Athletics are preparing to promote left-handed pitcher Gage Jump to the major leagues, as reported by ESPN's Jeff Passan. This decision comes in light of a possible injury to starting pitcher Aaron Civale, who struggled in his recent outing against the Seattle Mariners, allowing seven runs in four innings. Civale is likely to be placed on the injured list pending further tests. Jump, 23, is currently the A's No. 3 prospect for 2026, with a 4.50 ERA over nine starts in Triple-A this season, including a standout performance where he pitched seven scoreless innings and struck out nine batters, earning him the Pacific Coast League's Pitcher of the Week accolade. If Jump takes Civale's spot in the rotation, he may not start until Sunday, but the team could adjust the pitching schedule to ensure he doesn't have a long gap between starts. This sets the stage for Jump's anticipated MLB debut in the near future.