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Logan Morrison might be the most dangerous Marlin in the infield.
Virtual locks: Rob Brantly, Greg Dobbs, Adeiny Hechavarria, Jeff Mathis, Logan Morrison, Placido Polanco and Donovan Solano.
If anyone needed evidence of the Marlins' youth movement, point them to the infield because it's youth galore.
The star of the revamped Marlins infield is Logan Morrison, provided he's healthy. After spending most of his three-year major league career in left field, Morrison will return to first base, a position he played in the minors, if he can be productive after undergoing right knee surgery (patella tendon) for the second time in less than a year back in September.
Donovan Solano, who is 25 years old like Morrison, will man second base after batting .295 in 285 at-bats in 2012. Solano's double-play partner, shortstop Adeiny Hechavarria, will play in his first full season in the majors after arriving in the Marlins' 12-player fire sale two months ago. Hechavarria hit .254 in 41 games with the Toronto Blue Jays last season.
At catcher, 23-year-old Rob Brantly has been entrusted with the position after batting .290 in 31 games after arriving in a midseason trade from the Detroit Tigers. Jeff Mathis, one of the few high-priced players—by Marlins standards—remaining will back up Brantly.
Greg Dobbs, a backup first baseman and third baseman, will be a valuable left-handed bat off the bench.
Speaking of third base, the Marlins signed Placido Polanco to fill the role. At 37 years old, Polanco is the oldest player on the team. It also means the infield could get younger if...
Looking for a job: Chris Coghlan, Zack Cox, Kevin Kouzmanoff, Joe Mahoney and Kyle Skipworth.
Cox can win the starting third base job out of Spring Training. Cox, one of the top prospects in the Marlins farm system, arrived in a midseason trade from the St. Louis Cardinals' farm system. Cox was considered the best college hitter in the 2010 draft, but he took a step back last season after hitting a combined .254 with Triple-A Memphis (Cardinals organization) and Double-A Jacksonville (Marlins organization). If Cox can rediscover his stroke, he can provide the Marlins with some much-needed offense.
Furthermore, if Cox wins the third base job, then Polanco can become a super utility player, which can be beneficial since the Marlins are short on middle infielders.
Coghlan and Kouzmanoff, the other third base candidates, are more hard-pressed to land a job as Coghlan has been injury-riddled the past couple of seasons while Kouzmanoff signed a minor league deal after spending all of last season in the minors with the Kansas City Royals organization. In his six-year major league career, Kouzmanodd is a .255 hitter with 85 home runs.
Mahoney can win a gig to back up Morrison, but he will be 26 with only four major league at-bats to his credit. Kyle Skipworth, the No. 6 overall pick in the 2008 draft, could earn a spot out of Spring Training, but he'll need to show vast improvement from his minor league numbers (.219 batting average with 61 home runs in five minor league seasons.