The Marlins have selected the contracts of outfield prospects Christian Yelich and Jake Marisnick.
Yelich began the season as one of the highest rated prospects in baseball.
In 60 games across three levels this season, Yelich has hit .274/.358/.504 with nine home runs, splitting his time between center field and left field.
Marisnick, 22, came to the Marlins as part of this offseason's blockbuster trade with the Blue Jays.