Michael Kostantonov is an offensive lineman for the Tennessee Volunteers listed at 6'4" and 322 pounds. The Northbrook, Illinois native transferred to Tennessee in the summer of 2025 as a redshirt sophomore after beginning his college career at Central Michigan. During his freshman year with the Chippewas, he appeared in two games on special teams, playing in contests against Western Michigan on 11/19 and at Northern Illinois on 11/30 before redshirting the remainder of the season. At Loyola Academy, Kostantonov played center and guard while serving as team captain his junior and senior years, helping the Ramblers compile a 25-2 record across his two varsity seasons and capturing an IHSAA Class 8A state title as a senior.