The Marlins are set to make a change at the top of their television booth, with Jack McMullen emerging as the leading candidate to replace Kyle Sielaff as the Marlins.TV play-by-play announcer.
According to sources, Miami will not renew Sielaff’s contract. He spent the last two seasons as the club’s primary TV voice after serving three years on radio, where he had already become a familiar presence around the organization.
McMullen, who took over Sielaff’s radio duties in 2025, is expected to move into the TV role and work most of his games with analyst Gaby Sanchez. The Marlins view the 29-year-old as a broadcaster with real upside.
Before joining Miami, he worked for the Indianapolis Indians, the Triple-A affiliate of the Pittsburgh Pirates. He has also added television play-by-play to his résumé this season by calling college football games on The CW.
McMullen’s work extends beyond the booth. He also works for Just Baseball and co-hosts The Just Baseball Show and The Call Up.
Sielaff’s path with the Marlins has been a long one. The club first elevated him to lead TV play-by-play to replace Paul Severino, and he held that job during a major broadcast transition. Miami’s 2025 season was its final year on FanDuel Sports Network, while 2026 marked the launch of Marlins.TV, with the games produced and distributed in partnership with Major League Baseball.
Before moving to television, Sielaff spent 12 years on the Marlins Radio Network, working in a variety of roles before becoming the lead play-by-play voice in 2023-24.
Miami’s broadcast overhaul is not limited to the play-by-play seat. Analysts Rod Allen and Jeff Nelson, along with pregame/postgame host Craig Minervini, will not return.
Nelson joined the organization in 2022 and called games with both Severino and Sielaff. His style leaned more traditional, with less emphasis on analytics or modern baseball language, even as the Marlins have leaned further into those ideas under baseball operations president Peter Bendix.
Minervini wrapped up his 25th season with the organization. Over the years, he filled a wide range of roles, most often in studio coverage. Like Allen, his responsibilities had shrunk, with fewer games and no more radio play-by-play work.
Tommy Hutton has also retired, as previously announced. He had handled TV analysis for most home games.
Still expected to remain with the broadcast team are Kelly Saco and Jeremy Taché as sideline reporters, along with AJ Ramos and Craig Mish in pregame and postgame roles.
The organization has also repaired its relationship with veteran play-by-play man Rich Waltz, who made a cameo in the booth during the 2026 season finale. But sources say a full-time reunion was not on the table.
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What has always made Johnson such a meaningful name in Marlins history is how much of the early identity of the club ran through him. Catchers who came after him have had a long list of accomplishments to chase, but Johnsons rsum still stands out because he was there from the beginning and kept stacking accolades while helping shape the way the organization thought about defense and durability at the position. [Read more 🡒]