Medina (elbow) will make his Cactus League debut with a relief appearance Monday against the Padres, Jason Burke of SI.com reports.
It will be the first time Medina has pitched in a game since he underwent Tommy John surgery in August 2024. The 26-year-old faces an uphill battle in making the Athletics' Opening Day roster, but he should play a role with the big club this season either as a starting pitcher or reliever.