Arron Mosby

Early life and education

Mosby was born on April 13, 1999, in Fresno, California. He attended Sanger High School and was a two-way starter, playing at wide receiver on offense and cornerback on defense. He was twice named all-league as a defensive back and was given first-team all-CMAC honors in 2016 as a senior. That year, he was named a Fresno Bee all-star.

After graduating from Sanger, Mosby committed to Fresno State University and played in every game as a true freshman, mainly as a special teamer. He made a total of five tackles in 14 games. As a sophomore in 2018, Mosby recorded 12 tackles and one interception while appearing in 13 out of 14 games. His one interception was returned 95 yards for a touchdown against San Jose State and was the fourth-longest in team history.

Mosby recorded 78 tackles as a junior in 2019, placing fourth on the squad. He appeared in all 12 games, and 40 of his tackles were solo stops. In a 2020 season shortened by COVID-19, Mosby played in all six games and recorded 21 tackles, including three for a loss. All players were given an extra year of eligibility because of the virus, and he opted to return to the team in 2021 as a fifth-year player. Playing defensive end, Mosby started 12 games out of 13 and was named an honorable mention All-Mountain West Conference. He recorded 40 tackles, six sacks, six forced fumbles, two recoveries, and a team-leading 15.5 tackles-for-loss. He was invited to the Hula Bowl and the NFLPA All-Star Game after the season ended.