University Southern California Trojans
2023 USC Football Roster
Roster

Jersey Number 99
Jack Sullivan
- Position:
- Defensive Lineman
- Height:
- 6-5
- Weight:
- 275
- Class:
- Redshirt Senior
- Hometown:
- Plainfield, Ill.
- High School:
- Plainfield East HS / Purdue
CAREER: In his 5-year career at Purdue (2018-22), he had 85 tackles, including 13.5 for losses (with 9.0 sacks), 7 pass deflections and 1 forced fumble while appearing in 46 games with 19 starts.
2023: Sullivan, who transferred to USC in the spring of 2023 from Purdue, will compete for playing time on the defensive line as a redshirt senior.
PURDUE: He started in all 14 games of his redshirt senior season in 2022. He recorded 38 tackles, including 7 for loss (with 5.5 sacks), 2 QB hurries 1 pass breakup and 1 forced fumble. He had 3 tackles against Penn State, 2 tackles, including 1 for loss of 8 yards (and 1 sack for minus 8 yards) against Indiana State and 4 tackles against Syracuse. He tallied 2 tackles against Florida Atlantic, 2 tackles, including 0.5 for loss of 3 yards and 1 pass breakup against Minnesota and 3 tackles against Maryland. He recorded 4 tackles, including 1 for loss of 7 yards (and 1 sack for minus 7 yards) against Nebraska and 1 tackle for loss of 8 yards (with 1 sack for minus yards) against Wisconsin. He had 3 tackles, including 2 for loss of 14 yards (with 1 sack for minus 10 yards) against Iowa and 3 tackles against Illinois. He tallied 3 tackles, including 1 for loss of 5 yards (with 1 sack for minus 5 yards), 1 forced fumble and 1 QB hurry against Northwestern. He collected 3 tackles, including 0.5 for loss of 4 yards (with 0.5 sack for minus 4 yards) against Indiana. He recorded 5 tackles against Michigan in the Big Ten Championship Game.
He appeared in all 13 games with 3 starts to end the year (Northwestern, Indiana and Tennessee) as a redshirt junior. He totaled 22 tackles, including 4.5 for loss (with 2.5 sacks), 3 QB hurries and 1 pass breakup. He recorded 2 tackles and 2 QB hurries against UConn and 1 tackle against Notre Dame and Illinois. He tallied 3 tackles, including 0.5 for loss of 1 yard, against Minnesota, and 1 tackle, including 0.5 for loss of 4 yards (with 1 sack for minus 4 yards) versus Iowa. He notched 3 tackles against Wisconsin, 1 tackle against Nebraska and 5 tackles, including 1 for loss of 3 yards, against Michigan State. He had 1 tackle, including 1 for loss of 9 yards (with 1 sack for minus 9 yards) and 1 QB hurry against Northwestern. He recorded 1 pass breakup against Indiana and 4 tackles, including 1.5 for loss of 7 yards (with 1 sack for minus 6 yards) in the Music City Bowl against Tennessee.
He appeared in all 6 games of the abbreviated 2020 season making 2 starts (Northwestern and Nebraska) as a redshirt sophomore. He was named to the Academic All-Big Ten Team. He recorded 12 tackles, including 2 for loss (with 1 sack). He tallied 3 tackles against Illinois, 1 tackle against Northwestern and 4 tackles against Rutgers. He notched 4 tackles, including 2 for loss of 9 yards, (with 1 sack for minus 6 yards) against Nebraska.
He appeared in all 12 games of the 2019 season as a redshirt freshman where he had 13 tackles on the season. He was named to the Academic All-Big Ten Team. He recorded 1 tackle against Minnesota, 2 tackles against Penn State and another 2 tackles with 1 pass breakup against Iowa. He notched 1 tackle against Illinois and Nebraska, and 3 tackles with 1 pass breakup against Northwestern. He had 1 tackle against Wisconsin and Indiana.
He redshirted his true freshman year in 2018.
HIGH SCHOOL: He had 20 tackles, including 6 sacks, 1 INT and a forced fumble while a senior at Plainfield East HS.
PERSONAL: He earned his bachelor’s degree in Professional Flight Technology and Aviation Management from Purdue. He is currently pursuing a certificate in Gerontology at USC with a 3.85 GPA.
2023: Sullivan, who transferred to USC in the spring of 2023 from Purdue, will compete for playing time on the defensive line as a redshirt senior.
PURDUE: He started in all 14 games of his redshirt senior season in 2022. He recorded 38 tackles, including 7 for loss (with 5.5 sacks), 2 QB hurries 1 pass breakup and 1 forced fumble. He had 3 tackles against Penn State, 2 tackles, including 1 for loss of 8 yards (and 1 sack for minus 8 yards) against Indiana State and 4 tackles against Syracuse. He tallied 2 tackles against Florida Atlantic, 2 tackles, including 0.5 for loss of 3 yards and 1 pass breakup against Minnesota and 3 tackles against Maryland. He recorded 4 tackles, including 1 for loss of 7 yards (and 1 sack for minus 7 yards) against Nebraska and 1 tackle for loss of 8 yards (with 1 sack for minus yards) against Wisconsin. He had 3 tackles, including 2 for loss of 14 yards (with 1 sack for minus 10 yards) against Iowa and 3 tackles against Illinois. He tallied 3 tackles, including 1 for loss of 5 yards (with 1 sack for minus 5 yards), 1 forced fumble and 1 QB hurry against Northwestern. He collected 3 tackles, including 0.5 for loss of 4 yards (with 0.5 sack for minus 4 yards) against Indiana. He recorded 5 tackles against Michigan in the Big Ten Championship Game.
He appeared in all 13 games with 3 starts to end the year (Northwestern, Indiana and Tennessee) as a redshirt junior. He totaled 22 tackles, including 4.5 for loss (with 2.5 sacks), 3 QB hurries and 1 pass breakup. He recorded 2 tackles and 2 QB hurries against UConn and 1 tackle against Notre Dame and Illinois. He tallied 3 tackles, including 0.5 for loss of 1 yard, against Minnesota, and 1 tackle, including 0.5 for loss of 4 yards (with 1 sack for minus 4 yards) versus Iowa. He notched 3 tackles against Wisconsin, 1 tackle against Nebraska and 5 tackles, including 1 for loss of 3 yards, against Michigan State. He had 1 tackle, including 1 for loss of 9 yards (with 1 sack for minus 9 yards) and 1 QB hurry against Northwestern. He recorded 1 pass breakup against Indiana and 4 tackles, including 1.5 for loss of 7 yards (with 1 sack for minus 6 yards) in the Music City Bowl against Tennessee.
He appeared in all 6 games of the abbreviated 2020 season making 2 starts (Northwestern and Nebraska) as a redshirt sophomore. He was named to the Academic All-Big Ten Team. He recorded 12 tackles, including 2 for loss (with 1 sack). He tallied 3 tackles against Illinois, 1 tackle against Northwestern and 4 tackles against Rutgers. He notched 4 tackles, including 2 for loss of 9 yards, (with 1 sack for minus 6 yards) against Nebraska.
He appeared in all 12 games of the 2019 season as a redshirt freshman where he had 13 tackles on the season. He was named to the Academic All-Big Ten Team. He recorded 1 tackle against Minnesota, 2 tackles against Penn State and another 2 tackles with 1 pass breakup against Iowa. He notched 1 tackle against Illinois and Nebraska, and 3 tackles with 1 pass breakup against Northwestern. He had 1 tackle against Wisconsin and Indiana.
He redshirted his true freshman year in 2018.
HIGH SCHOOL: He had 20 tackles, including 6 sacks, 1 INT and a forced fumble while a senior at Plainfield East HS.
PERSONAL: He earned his bachelor’s degree in Professional Flight Technology and Aviation Management from Purdue. He is currently pursuing a certificate in Gerontology at USC with a 3.85 GPA.
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