Marlins selected the contract of C Joe Mack from Triple-A Jacksonville
Mack is the 54th-ranked prospect in baseball, according to MLB Pipeline. A lot of that value comes from his defense, which is stellar. He’s hitting .244/.388/.378 in Triple-A with three home runs, one steal, and a 22/20 K/BB ratio. Mack hit 21 home runs and stole 9 bases in 112 minor league games last year, while hitting .257, so maybe he profiles as a .240 with 10-15 home runs and 3-4 steals the rest of the way? That’s likely more of a two-catcher league target.