Phillips redshirted his first year at Mississippi State, a circumstance he later called "the best thing I ever could have done."[6] He then played at both tackles positions as part of an offensive line rotation during his junior year.[7] During his senior season, Phillips started all 13 games the Bulldogs played in.[8] After the season, Phillips played in the 2020 Senior Bowl.[1]
Phillips was drafted by the Baltimore Ravens in the third round with the 106th overall pick of the 2020 NFL draft.[11] During training camp, he shifted from tackle to offensive guard and beat out D. J. Fluker for the starting job at the start of the season despite dealing with an ankle injury.[12][13] He was placed on injured reserve on November 3, 2020, with an ankle injury,[14] and activated on November 30.[15] On December 21, in Week 15 against the Jacksonville Jaguars, Phillips picked up a fumbled ball and ran with it for 22 yards.
On September 13, 2021, Phillips was carted off the field with a knee injury in the first half of the season-opener against the Las Vegas Raiders. It was revealed he suffered a torn ACL and was placed on injured reserve on September 14, 2021.[16] On October 16, 2021, Phillips was activated from injured reserve.[17] On December 30, 2021, Phillips was again placed on injured reserve, putting an end to his sophomore season.[18]
On August 31, 2022, Phillips was released by the Ravens.[19]
New York Giants
On September 1, 2022, Phillips was signed by the New York Giants.[20] He was released on August 29, 2023 and re-signed to the practice squad, but released the next day.[21][22][23]
On October 17, 2023, Phillips was signed by the Giants off the Eagles' practice squad.[25] He was thrust into the starting lineup in Week 7 at right tackle in place of the injured Evan Neal, and started nine of the next ten games.