Collins' mother later confirmed to ESPN.com that her son was entering the draft. Collins -- who was All-America this season -- is considered to be a likely first-round pick in the draft, which will be held April 30 to May 2 in Chicago.
Collins recorded 103 total tackles, recovered two fumbles, broke up seven passes and co-led his team with three interceptions in 14 games this season. He earned first-team All-America honors from the Associated Press and helped lead Alabama to another SEC title and a spot in the College Football Playoff.
Top-ranked Alabama lost to Ohio State 42-35 in the Sugar Bowl, and Collins had 11 tackles in the game.
In three seasons with the Crimson Tide, Collins tallied 189 tackles and five interceptions.
- Scooby Axson