Den Dekker will be in a battle to break camp as one of the Mets' two backup outfielders, Newsday reports.Den Dekker closed the season strong, batting .290 in 36 games after being called up for the third time on August 9. That batting average was a stark contrast to his first two stints, during which he hit .104. Den Dekker is sold defensively and improved his plate discipline last season, two components that could give him a leg up to earn a spot.