Mariners Eyeing Andrew Knizner as Backup Catcher: What This Means for Seattle (2026)

The Seattle Mariners are stirring up intrigue in the baseball world! Chris Cotillo of MassLive reveals that the team is negotiating a deal with free agent catcher Andrew Knizner, a move that could reshape their roster.

But here's where it gets interesting: if the Mariners sign Knizner to a major league contract, he'd likely become the backup catcher to Cal Raleigh, a role that demands attention.

Knizner's journey in 2025 was eventful. He started with the Nationals' Triple-A team but was released in May, only to find a new home with the Giants. Despite the presence of the renowned Patrick Bailey, Knizner managed to start in 28 of his 32 appearances, showcasing his resilience.

Knizner's stats are a tale of two stories. In the majors, he's a .211 hitter with limited playing time, but in Triple-A, he shines with a .292 average. This begs the question: can the Mariners unlock his potential?

And this is the part most teams consider: Knizner's defensive skills. While his pitch framing has improved, his blocking and arm strength are areas of concern. With a below-average baserunner throw-out rate, is he the right fit for a backup role?

San Francisco's decision to non-tender Knizner adds another twist. The Giants opted to give rookie Jesus Rodriguez a chance, leaving Knizner available. Meanwhile, the Mariners, lacking a second catcher on their roster, might see him as a valuable addition.

If Knizner signs, he'll likely be the #2 catcher, but the Mariners may still seek alternatives. With Raleigh's heavy workload, a reliable backup is crucial.

Is Knizner the missing piece for the Mariners? Share your thoughts below! Will his defensive abilities be a concern, or can the Mariners unlock his offensive potential? The baseball world awaits your insights!

Mariners Eyeing Andrew Knizner as Backup Catcher: What This Means for Seattle (2026)
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