Miami Marlins left fielder/first baseman Derek Dietrich is out of Monday's starting lineup against the Washington Nationals.
Peter O'Brien will replace Dietrich at first base, opening up a start in right field for Magneuris Sierra, who will bat eighth versus Nationals right-hander Erick Fedde.
Dietrich is averaging 8.3 FanDuel points per game this season.
Source: Baseball Press