Simpson (elbow) will throw a live bullpen session Saturday with Single-A Jupiter, Christina De Nicola of MLB.com reports.
Simpson has been cleared to face batters after completing a pair of bullpens within the last week. While he threw 35 pitches in his previous session, Simpson is expected to throw only 25 pitches Saturday. The southpaw underwent elbow surgery in late April, but he is expected to pitch again in 2024.