The Athletics plan to call up Estes from Triple-A Las Vegas on Monday, Martin Gallegos of MLB.com reports.
Estes was dealt from Atlanta to Oakland in March 2022 as part of the trade that sent Matt Olson to Atlanta. Estes has spent the 2023 campaign with Double-A Midland and Las Vegas, posting a 3.74 ERA and 1.16 WHIP in 137 innings over 27 appearances (23 starts) in the minors. The 21-year-old will have an opportunity to make a late-season impression for the rebuilding Athletics. Since he made his final start with Las Vegas on Friday, he could slot into the big-league rotation as soon as Wednesday against the Mariners in Oakland.