Marlins address catching problem, with Joe Mack replacing Agustín Ramírez

[Ely Sussman]

The Miami Marlins are addressing an immediate weakness by promoting somebody who they hope will prove to be a long-term building block. Catcher Joe Mack is being recalled from Triple-A Jacksonville, as first reported by Craig Mish of Marlins.TV following Sunday's loss. The corresponding roster move will be optioning Agustín Ramírez to Jacksonville. The Marlins won't be announcing the move until Monday.

Mack was the 31st overall pick of the 2021 MLB Draft. It wasn't until the 2024 season that he began emerging as an impact player in their farm system. Now ranked third on the Fish On First Top 30, he has spent more than a full year at Triple-A. In those 123 games, he is slashing .249/.334/.444 with 21 home runs and nine stolen bases.

But the 23-year-old projects to be even more valuable on defense. Minor League Baseball's 2024 Gold Glove award winner at catcher, Mack possesses a plus-plus arm and at least average ability as a receiver, blocker and framer. In 23 games at catcher this season, he has a 29% caught stealing rate (the International League average is 22%). Without Mack's services, the Marlins have allowed an MLB-high 42 steals. They also were the league's worst in that department in 2025.

Not only does Mack stand out among Marlins position player talent, he's ranked 50th overall on Baseball America's Top 100 MLB prospects list, 54th on MLB Pipeline's and 37th on Just Baseball's.

Meanwhile, second-year backstop Liam Hicks has dramatically boosted his stock, emerging as the Marlins' leading run producer. Mack figures to start the majority of games behind the plate moving forward, but Hicks should get ample playing time at designated hitter and first base while still catching about twice per week.

Although demoting Ramírez is entirely justified, the timing of this move came as a surprise because the Marlins had been continuing to give him regular reps. Playing in 31 of a possible 34 games, the "Gus Bus" is slashing .239/.328/.358 (86 wRC+). He has homered only twice despite being gifted with elite raw power.

Ramírez is a horrible defensive catcher and he has been since the moment the Marlins acquired him in 2024. The organization has stubbornly kept his full focus on that position rather than attempting to create some versatility with work at first base or the corner outfield spots. That makes him an awkward fit for their active roster now that Mack has been deemed fully ready.

Ramírez entered this year with all three of his minor league options intact.

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[UKPhil]

At last!!! I'm sure Agustin is a lovely guy and kind to children and animals, but to any admirer of defensive skills, at catcher he is an abomination.

I have been longing for Mack's arrival in Miami since realising during Spring Training that Gus's hard work during the winter had borne no real fruit

[Shawn]

I’m a little surprised there sending done Gus, my guess is to start transitioning him to first or outfield. This move was needed to be made though Gus just can’t catch. I’m now just waiting for the paddock experience to end. Might have to wait till he gets lit up one more time but I want Garrett back.

[2qbn]

Whoa! I did not expect this move. Hopefully Gus takes it in stride and improves his hitting and finds a new position and sticks. 

[THOMAS JOSEPH]

Fresh reinforcement exactly where and when we need it. Regarding pitching, Whatever happens with Paddock's role, if any, Garrett and Snelling are on deck. I'm not worried, barring multiple injuries to starters. Frankly, Eury is more of a concern to me right now. 

[Hippyboi]

Mack's move up can only help, but sending down Gus was a surprise, though probably a good decision.

Alderman has been on a tear. If he can cut down on his strikeouts, he could be a good starter. Maybe Marsee to AAA for a spell, especially if he is still doing nothing when Conine comes back.

[1993 fan from start]

I guess it took poor base running for it to happen.  

does it mean Joe hits second and third in the batting  order? 

makbe Joe give better pitching target. we  know their won't be as many pass balls.

Good to see marlins did not trade wrong Catcher to the Rays last year.   But he getting more playing time as a Rays player

2 hours ago, 2qbn said:

Whoa! I did not expect this move. Hopefully Gus takes it in stride and improves his hitting and finds a new position and sticks. 

who?

[Jose Herrera]

Welcome to the Major's Joe!

Excited to see how he will help us win games.

 

[One Regend]

honestly this needed to happen 30 games ago

agustin ramirez has been by far the worst catcher in baseball by a country mile, and the marlins front office stubbornly convinced themselves that he's their team's catcher. how many runs did we give up because of his passed balls? or wild pitches that could've been blocked by a competant catcher? or the runners that advanced bases because he cant throw base stealers out?

he's talented with the bat but watching him play defense behind the plate and give up free runs every game is akin to torture. i've been saying this last year, i've been saying this all offseason, and i've been preaching it this season all year long, the man is built to be a first baseman. stop pretending he's a catcher and move him to where he could actually succeed.