He played as a running back in his four seasons and also started two-ways as an outside linebacker beginning as a junior.
Olonilua was signed as an undrafted free agent by the Dallas Cowboys after the 2020 NFL draft on April 27.
[9] The Houston Roughnecks selected Olonilua in the sixth round of the 2023 XFL Supplemental Draft on January 1, 2023.
[11] The Guardians folded when the XFL and USFL merged to create the United Football League (UFL).
[12] On January 29, 2024, Olonilua signed with the Edmonton Elks of the Canadian Football League (CFL).