Kelly broke out in his third season at Weber State in 2023, totaling 56 tackles, 12 TFLs, 10.5 sacks, two forced fumbles, two passes defended and one interception and earning first-team All-Big Sky honors while leading the Big Sky in forced fumbles and sacks. He transferred to BYU the following year. In 2025, he totaled 55 tackles, 13.5 TFLs, 10 sacks, two forced fumbles and one pass defended and earned first-team All-Big 1 honors. Kelly, 23, stands 6’2/240 and fared well at the NFL Scouting Combine.