In a move that’s sure to spark conversations among baseball fans, the Seattle Mariners have just signed catcher Andrew Knizner to a 1-year Major League contract, locking him in through 2026. But here’s where it gets interesting: Knizner’s journey to Seattle has been anything but straightforward. At 30 years old, he’s already bounced between three teams in the past few seasons—St. Louis (2019-23), Texas (2024), and most recently, San Francisco (2025). So, what does this mean for the Mariners? And this is the part most people miss: Knizner’s defensive skills behind the plate are quietly impressive. In 2025, he played 234 innings for the Giants without allowing a single passed ball—a stat that doesn’t always grab headlines but speaks volumes about his reliability. Is he the missing piece the Mariners need?
With this signing, the Mariners’ 40-man roster now sits at 39 players, leaving room for potential future moves. But let’s dive deeper into Knizner’s numbers. In 33 games with the Giants last season, he batted .221 with 12 runs, 1 double, 1 triple, 1 home run, 5 RBI, and 7 walks. While his offensive stats might not jump off the page, his ability to handle pitching staffs and control the game from behind the plate could be a game-changer for Seattle. Over his 323 Major League games, Knizner has compiled a .211 career batting average with 19 home runs, 90 RBI, and a .596 OPS—solid, if unspectacular, numbers for a catcher.
Standing at 6-foot-1 and 225 pounds, Knizner brings a sturdy presence to the position. Originally drafted by the St. Louis Cardinals in the 2016 MLB Draft out of North Carolina State University, his career has been a rollercoaster of trades, waivers, and free agency. From his Major League debut with the Cardinals in 2019 to his brief stints with the Rangers, Diamondbacks, Nationals, and Giants, Knizner has seen it all. But does this journeyman catcher have what it takes to make an impact in Seattle?
Here’s a thought-provoking question for you: In an era where teams are increasingly prioritizing offensive production from catchers, is Knizner’s defensive prowess enough to justify his spot on the roster? Or will the Mariners need to lean on his bat more than expected? Let us know your thoughts in the comments—this signing is sure to divide opinions among fans and analysts alike.
