[1] Davis was rated a four star recruit and committed to play college football at Clemson over offers from Virginia Tech, Duke, Wake Forest, and Ole Miss.
[2][3] Allen played in 15 games during his freshman season with the Clemson Tigers and was used primarily as an in-line blocker.
[7][8] He was named third-team All-Atlantic Coast Conference as a senior after catching 39 passes for 443 yards and five touchdowns.
[13] Against the San Francisco 49ers in Week 18, Allen made his first professional start, catching four passes for 25 yards in the Rams' 21–20 victory.
[14] In an NFC Wild Card Game at Detroit, Allen caught two passes for 28 yards in the Rams' 24–23 loss to the Lions.