Dekker played college football at Princeton. He finished his career with 64 receptions for 760 yards and five touchdowns.
Professional career
Dekker was signed by the Pittsburgh Steelers as a rookie free agent and spent the 2006 season on the practice squad. He played in three games for the Steelers in 2007. On August 16, 2008, he was waived injured before the season started, after suffering a preseason knee injury. Dekker was part of the Super Bowl XLIII team that won the Super Bowl.