A Crushing Blow to the Trojans' Offensive Line

USC's 2026 season took a significant hit before the first snap, as starting center Kilian O'Connor suffered a season-ending knee injury during a fall camp practice, multiple sources confirmed. The fifth-year senior, who was the anchor of the Trojans' offensive line and a projected top-100 NFL draft pick, was injured during a team drill on Tuesday. Medical evaluation confirmed a torn ACL that will require surgery and a full season of rehabilitation. The injury is a devastating blow to a USC program that entered the season ranked No. 14 in the preseason Coaches Poll and harboring legitimate College Football Playoff aspirations.

O'Connor's Journey to Stardom

Kilian O'Connor's path to becoming USC's starting center was anything but typical. The 6-foot-3, 305-pound lineman arrived at USC as a walk-on in 2022, earning a scholarship after his redshirt freshman season. He became the full-time starter at center in 2024 and never looked back, starting all 27 games over the past two seasons. In 2025, he was named second-team All-Big Ten after allowing just one sack in 512 pass-blocking snaps. His leadership and football IQ made him the quarterback of the offensive line, responsible for making protection calls and adjustments at the line of scrimmage. "Kilian is the heart and soul of our offensive line," head coach Lincoln Riley said in a statement. "His toughness, his intelligence, and his leadership are irreplaceable. We're heartbroken for him, but we also know that this program is built on next-man-up mentality."

The Replacements: Who Steps Up?

USC's offensive line depth will be tested immediately. The Trojans have two primary options to replace O'Connor:

Option 1: Redshirt sophomore Elijah Paige — Paige has been the first-team guard during O'Connor's tenure and has experience at center from his high school days. He has been taking first-team reps at center since O'Connor's injury and brings the most experience to the position. Moving Paige to center would create a hole at guard, but the Trojans have depth at that position.

Option 2: Freshman Justin Bell — The true freshman from Santa Ana, California, enrolled early and participated in spring practice. Bell was a four-star recruit and the No. 3 center prospect in the 2026 class. He has impressed the coaching staff with his maturity and technique, but starting a true freshman at center on a team with playoff aspirations is a significant risk.

Riley is expected to use a rotation of Paige and Bell in the early games to evaluate both players under game conditions before settling on a permanent starter. The Trojans open the season against Rice, followed by a crucial Week 2 matchup against LSU — a game that will test the new center's ability to handle complex defensive fronts and blitz packages.

Impact on USC's Season Outlook

USC's offensive line was already a concern entering the season, with the Trojans replacing two starters from 2025. O'Connor's injury amplifies every weakness in the unit. The Trojans' offensive success depends on quarterback Miller Moss's ability to get the ball out quickly and running back Quinten Joyner's knack for creating yards after contact — both of which become more difficult with a new center making protection calls. The Trojans' schedule is brutal: after LSU, they face Michigan, Penn State, and Oregon in consecutive weeks from mid-October to early November. If USC's offensive line struggles, the Trojans' playoff hopes could unravel before Halloween.

What This Means for CFB 27

In College Football 27, O'Connor's injury will be reflected in the first roster update of the season, removing him from USC's active roster in Dynasty mode and Road to Glory. For Dynasty players who have built their USC program around a veteran offensive line, this is a realistic setback that requires strategic depth management. In Ultimate Team, O'Connor's base card — which had a 78 overall rating with high pass-blocking and awareness stats — will no longer be available in packs, possibly making it a limited collectible. For Road to Glory players who have chosen USC as their program, expect more pressure from the pocket on passing plays, as the offensive line's cohesion rating will take a significant hit without its anchor.