Mack is slashing .237/.317/.457 with 22 home runs and a 26.1 percent strikeout rate in 109 games for Double-A Pensacola.
The No. 31 overall pick in 2021, Mack hadn't made much noise as a prospect prior to this season. He was quickly promoted from High-A Beloit after hitting .347 with two home runs and as many walks (11) as strikeouts in 13 games, and now he's up to 24 homers on the season in 122 games across the two levels. The 21-year-old lefty-hitting backstop has been 28 percent better than the average Southern League hitter, which is a very strong mark for an age-appropriate catching prospect. Mack has as good a shot as anyone at being Miami's catcher of the future, and he could be a 20-plus homer option at the position during his peak MLB seasons.
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Marlins' Joe Mack: Overcomes hamstring strain
Rotowire
Mack (hamstring) has gone 3-for-15 with 10 walks, two RBI and two runs in six games since being reinstated from Single-A Jupiter's 7-day injured list July 22.
Mack was on the shelf for nearly two months due to the hamstring strain before returning to action for the Marlins' Single-A affiliate. The 19-year-old catching prospect has shown a hyper-patient approach at the plate since being activated, and his combination of high on-base percentages and burgeoning pop could make him an interesting fantasy option down the road, especially if he's able to stick behind the plate.
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Marlins' Joe Mack: Dealing with hamstring strain
Rotowire
Mack is dealing with a hamstring strain and is expected to miss approximately 4-6 weeks, Daniel Alvarez-Montes of El Extrabase reports.
Mack has appeared in just four games this year while battling a hamstring issue, and he'll focus on his rehab process after being diagnosed with a strain. The 19-year-old will presumably attempt to return to game action sometime in late July or early August.
