Athletics Call Up No. 29 Prospect Gage Jump to Replace Aaron Civale
Updated
Updated · Baseball America · May 26
Athletics Call Up No. 29 Prospect Gage Jump to Replace Aaron Civale
3 articles · Updated · Baseball America · May 26
23-year-old left-hander Gage Jump is headed to the Athletics' rotation, with MLB.com reporting he will take Aaron Civale's spot.
Jump earned the promotion after posting a 4.50 ERA with 56 strikeouts and 20 walks in 38 Triple-A innings, including seven innings in his latest start and just one walk over his last 11.
Baseball America ranks him No. 29 on its Top 100 list, and evaluators point to a mid-90s fastball, two slider looks, a curveball and a changeup as his swing-and-miss arsenal.
The 2024 second-round pick struck out 131 batters in 111.2 innings in his 2025 pro debut, though his 11.8% walk rate at Triple-A shows command remains the main question.
The A's see him as a future staple. What is Gage Jump's true ceiling against MLB's best hitters?
He conquered Triple-A's toughest parks. Can Jump's 'invisiball heater' immediately fix the A's struggling rotation?