William

Kempner

Kempner heads back to the minors after tossing a scoreless inning during his lone appearance for the Marlins after being called up earlier this week. The 24-year-old figures to return to Miami at some point later this season.

We’re still early enough in camp that teams aren’t faced with difficult decisions just yet, so there are no surprises here. Fulton, 26, had a particularly brutal 2025 season, registering a 5.38 ERA, 1.62 WHIP and a 115/59 K/BB ratio over 103 2/3 innings between Double-A Pensacola and Triple-A Jacksonville. He’ll continue to operate as extra pitching depth for the Fish.

A phenomenal defender behind the plate, Mack projects as Miami’s catcher of the future and should enter spring training with a chance to seize the starting role. Agustín Ramírez offers a much higher offensive upside, but his omnipresent defensive challenges make him more of a long-term fit at DH.

The move will help the Giants sign their IFA class, and it’s worth noting they signed one of the biggest names in the class in Josuar De Jesus Gonzalez. Kempner is a former third-round selection out of Gonzaga who missed the 2024 season due to injury, and he’ll likely pitch at the upper levels for the Marlins assuming good health.