Marlins outfielder Marcell Ozuna is the front-runner for the center field job, according to MLB.com.
Ozuna has hit just .180 over 50 at-bats this spring. He's showing improvement recently, and appears to have an edge over Jake Marisnick. Marisnick will likely begin the season in Triple-A. Ozuna hit .265 in 275 at-bats last year.