Career
He was drafted by the Falcons in the fifth round of the 2014 NFL Draft. He played college football at Purdue. Allen attended Mainland High School in Daytona Beach, Florida.
Allen committed to Purdue University on October 16, 2009.
As a junior in 2012, Allen broke the Purdue record for interceptions for touchdowns. He was a second team All-Big Ten Conference selection.