As a junior in 1993, he was recognized as a consensus first-team All-American, after which he decided to forgo his final year of college eligibility and enter the NFL Draft.

The Arizona Cardinals selected Miller in the first round (tenth pick overall) of the 1994 NFL Draft.

[5] He attempted to rehab the injury and return the following year, but a middling April 2003 workout (by his admission) and advice from his doctors convinced him to announce his retirement on May 16.

Miller was carted off the field after tearing his right Achilles tendon in a 27–15 preseason victory over the Minnesota Vikings to start the 2002 pre-season.

He was placed on injured reserve August 13, 2002, but the severity of his injury led to him being waived on February 22, 2003, the end of the 2002 campaign.