Umanmielen was born on April 18, 2002, in Manor, Texas. He attended Manor High School, playing for their football team recording 93 tackles with 13 going for a loss, six sacks, two fumble recoveries, and a forced fumble.[1] Umanmielen committed to play college football at the University of Florida over offers from Auburn, Baylor, and Texas.[2]
College career
Florida
As a freshman in 2020, Umanmielen notched three tackles with two being for a loss, and two sacks.[3] In 2021, he tallied 17 tackles with 1.5 going for a loss, a sack, and a forced fumble.[4] In week 10 of the 2022 season, Umanmielen had a strip sack on quarterback Haynes King in a win over Texas A&M.[5] He finished the season with 39 tackles with 9.5 being for a loss, 4.5 sacks, and two forced fumbles.[6] Ahead of the 2023 season, Umanmielen was named preseason third-team all-SEC.[7] He was a projected as a late second round pick for the 2024 NFL draft.[8] On December 6, 2023, instead of declaring for the draft, he entered the NCAA transfer portal.[9]
Ole Miss
On December 15, 2023, Umanmielen announced that he would be transferring to Ole Miss.[10]