McMillon started 16 games during his career for the Longhorns, mostly at guard, but graduated with a degree in corporate communications last spring and was honored during Senior Night ceremonies back in November.
An Abilene product, McMillon was a consensus three-star prospect as a defensive end in the 2014 recruiting class before shuffling between the offensive and defensive lines, recording three tackles in 12 games in 2015 on defense.
In 2016, McMillon made his final move back to offense and started five games for the Longhorns, showing some promise as a run blocker. However, he dealt with injuries and plateaued as a junior while starting 11 games.
With three other scholarship offensive linemen forfeiting eligibility to step away from the game, the loss of McMillon hurts the overall depth for Texas. The staff wants junior college transfer Mikey Grandy to step into McMillon’s starting role, but sophomore Denzel Okafor could also compete for the position after playing tackle in 2017.