Chargers center Tyler Biadasz injured, out indefinitely after left knee setback

Los Angeles Chargers center Tyler Biadasz is expected to miss an extended stretch after sustaining a left-knee injury during practice, reports from ESPN’s Adam Schefter and NFL Network’s Ian Rapoport said Tuesday. The injury, described as ACL damage plus additional injury to the same knee, is being treated as an indefinite absence. The Chargers’ next steps at center are now the most pressing issue as the team closes out training camp.

The reports tie the injury to a specific moment: Biadasz was hurt during a joint practice with the San Francisco 49ers. Joint practices typically feature closer-to-game tempo and coordinated team periods, so losing a starting-caliber interior player in those sessions is a particular hit to continuity. For a center, the impact is not only the loss of a blocker, but also the loss of a quarterback-adjacent position that handles line calls, snaps, and communication in pass protection.

An ACL injury is often associated with a lengthy recovery timeline, and the “out indefinitely” label indicates the Chargers are not placing a near-term estimate on his return. Even for players who ultimately come back, teams generally plan for a gradual ramp-up of contact, protections, and timing work at center because the position is central to both run-game coordination and the rhythm of the passing attack.

The setback also places greater scrutiny on Los Angeles’ backup options in the middle of the offensive line. While teams can reshuffle lineups during camp, an extended absence for the starting center typically forces a chain reaction: the primary backup may need first-team reps, line depth charts can shift, and any late-preseason experimentation becomes less “testing” and more “necessary.”

For the 49ers, the joint practice connection matters less in the standings sense and more in the way it underscores how quickly roster value can change in preseason work. The 49ers and Chargers used the session to simulate game-like conditions, and Biadasz’s injury is a reminder that even non-game practices can carry real long-term consequences for the teams involved.

Looking ahead, the key question for the Chargers is how quickly they can establish a stable center play pattern. Center play tends to influence the timing of protections and the ability to call out blitz pickups, which in turn affects the offensive line’s overall cohesion. In the coming days, attention will likely shift to who is taking the majority of the reps at center during practice periods and how that decision changes the team’s interior blocking assignments.

In terms of uncertainty, the available reporting centers on the nature of the injury and the indefinite timetable, without additional detail on day-to-day updates or return estimates. Until the Chargers provide further medical information or roster designations, the most practical expectation is that Biadasz will remain sidelined through at least the early part of the season preparation window, while Los Angeles rebalances its offensive line depth.

For now, the most immediate impact is organizational: a starting center is removed from camp, and the Chargers must build a workable solution at the position before the regular-season roster hardens. The longer the absence, the more the team’s offensive identity around the interior line can be reshaped by the backup and any subsequent adjustments.