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Although he's just a first-year player, Jose Fernandez is the Marlins biggest and most marketable star, and thus, he gets his own slide.
But there are other important first-year Marlins players to keep an eye on:
Rob Brantly: The catcher was demoted to Triple-A New Orleans last month, according to the Miami Herald, and the main reason Brantly was held back was because of his issues behind the plate.
Brantly had a 4.45 catcher's ERA with seven passed balls with the Marlins, and he even moved his locker next to Jeff Mathis' so he could learn from the nine-year veteran, taking notes and communicating with pitchers. But that didn't work out either.
"That's something that we had a clear understanding of is that he's a young catcher, and there's going to be some hard lessons," bench coach Rob Leary, who works with the catchers, told MLB.com. "It wasn't for lack of preparation or caring. It's a lack of experience, and that's something he was getting and will get in the future."
New Orleans' season ends today, and it remains to be seen if the Marlins plan to call Brantly back to the big leagues for the rest of the year.
Derek Dietrich: Like Brantly, Dietrich was sent back to the minors July 23 due to ineffectiveness. Since he returned to Double-A Jacksonville, Dietrich has been solid as his slash line is .261/.356/.513 with seven home runs and 22 RBI in 35 games.
Currently, Dietrich is on the seven-day disabled list as he tweaked his back in a 4-3 victory last Thursday. According to the Florida Times-Union, he could return Thursday if the Suns advance to the playoffs. For that to happen, Jacksonville would have to beat Mississippi in its season finale today.
If the Suns reach the playoffs, it's unlikely Dietrich will return to the Marlins. But after the season, Dietrich is one of seven Miami prospects slated to play for Glendale Desert Dogs in the Arizona Fall League, according to MLB.com.
Adeiny Hechavarria: The Cuban shortstop's defense is worth the price of admission, but lately, there's been as many lowlights as there are highlights.
Hechavarria has committed 14 errors this season, but seven came in the month of August. Moreover, since Tino Martinez resigned as Marlins hitting coach, Hechavarria has reverted back to the funk he displayed the first two months of the season as his slash line since Martinez's departure is .197/.242/.248 in 117 at-bats.
Nonetheless, some still believe in Hechavarria's abilities.
“We like his action, the way he moves,” Dodgers manager Don Mattingly, a nine-time Gold Glove winner and six-time All-Star, told the Palm Beach Post. “He got us talking about all the good young shortstops. We look at him as one of those guys.”
Jake Marisnick: The first trip to the majors isn't always so pleasant. Marisnick is finding out the hard way.
Since he was called up July 23, Marisnick's slash line is .188/.239/.248 with one home run and five runs batted in. Furthermore, Marisnick has started in just four of the Marlins last 11 games.
No matter what happens, Marlins manager Mike Redmond considers this stint a learning experience.
"We'll give him his reps," Redmond told MLB.com. "At the end of this year, he will be able to go home and realize what it takes to sustain his swing up here in the Major Leagues, and what to work on."
A.J. Ramos: Fernandez isn't the only rookie flame-thrower on the Marlins pitching staff.
Ramos is second among all rookie relief pitchers with 76 strikeouts and leads all rookie relievers with 70 1/3 innings pitched. Ramos recently told MLB.com he aspires to be a closer someday, but for now, he's gaining valuable experience trying to log those final outs.
"I like his stuff," Redmond told MLB.com. "I think he's a guy who's proven he can pitch really in any situation. We've used him in a lot of different roles. We've used him early. We've used him late, multiple innings. Ahead, close games. He's proven that he can pitch, and he's got the demeanor and ability to handle any situation. I would have no problem throwing him in the eighth inning or any situation."
Christian Yelich: Unlike Brantly, Dietrich, Hechavarria and Marisnick, Yelich has been pretty consistent.
Since being called up with Marisnick, Yelich's slash line is .268/.343/.369 with two home runs and nine RBI in 149 at-bats. Moreover, Yelich has batted in one of the top three spots of the batting order in every game he's played with the Marlins this season.
"He's done a nice job, I think, of putting together good at-bats," Redmond told MLB.com. "And he's learning. He's stayed very consistent with his approach, he's drawn walks, and I feel very comfortable with him in the top part of the lineup as a young player, and that's obviously a good sign."
*First-year player is defined as players who are eligible for the National League Rookie of the Year award.