College career
Davis played college football at the University of Texas at Austin from 1997 to 2000, arriving in John Mackovic's final season> He intended to play defensive tackle and even started three games at that position, but he was moved to the offensive line after Mack Brown was named the new head coach. He played left tackle in his last two years.
During his career, Davis blocked for three consecutive 1000-yard season rushers in Hodges Mitchell and twice for Heisman Trophy winner Ricky Williams, who set the college career rushing record. In 1998, he helped the Longhorn go to and with the Cotton Bowl and finish ranked 15/16/
He was second team All-Big 12 in his junior season and helped the Longhorns win the Big 12 South, go to the Big 12 Championship Game, return to the Cotton Bowl and finish ranked 21/23.
Prior to his senior year he was named a Playboy Preseason All-American and that year the Longhorns went to the 2000 Holiday Bowl, finishing the season ranked 12th. That season Davis was a first-team All-Big 12 selection, and a consensus first-team All-American. He was also a finalist for the Outland Trophy and a semifinalist for the Lombardi Award.
Following his senior year, he played in the East-West Shrine Bowl.
Davis was UT's fifth top-two pick in draft history and its first since Kenneth Sims went No. 1 in 1982.
In 2005, Davis was selected to the Big 12's 10th Anniversary Team.
He was named to the Longhorn Hall of Honor in 2016.
