Biadasz Knee Injury Extends Chargers Line Practice Curse

Los Angeles Chargers center Tyler Biadasz is out indefinitely after suffering ACL damage and additional injuries to his left knee in Tuesday’s joint practice with the San Francisco 49ers. The 28-year-old was carted off after a teammate threw a defender into his leg, and he will meet more doctors for clarity on the path ahead.

The hit lands as the latest in a string of Chargers offensive line practice injuries that have repeatedly undercut efforts to protect Justin Herbert.

How the Play Unfolded on the Seventh Rep

On the seventh snap of first-team offense work at The Bolt, left guard Kayode Awosika threw 49ers defensive lineman Sebastian Valdez into the back of Biadasz’s left leg. Biadasz went down immediately. Trainers worked on him for several minutes. He could put no weight on the leg and left on a cart.

Imaging followed later Tuesday. The official team injury update said he sustained a left knee injury and is gathering additional opinions. NFL Network’s Ian Rapoport and ESPN’s Adam Schefter reported the ACL damage plus more left-knee injuries the next day. Mike Garafolo called it a long-term absence with several ligaments involved and a significant amount of time expected to be missed.

Obviously praying for the best.

Justin Herbert, after practice

Biadasz had started the day as the locked-in starter after signing in March. The NFL Network report on the ACL damage confirmed the negative turn for the Wisconsin product in his first camp with the Bolts.

A Familiar Cart Ride for Chargers Blockers

This is not new territory for the Chargers front. Last summer Pro Bowl left tackle Rashawn Slater tore his patellar tendon in a training-camp practice and missed the entire 2025 season. Right tackle Joe Alt battled a recurring ankle issue that cost him 11 games and ended in season-ending surgery. Both left the field in similar fashion.

Fans and film watchers quickly noted the “friendly fire” thread: a teammate’s block or shove sending a defender into a Chargers lineman’s lower body. The same sequence appeared again with Awosika and Valdez on Biadasz. The pattern has left Herbert under constant pressure despite roster spending.

1. August 2025: Slater suffers season-ending left-knee injury (patellar tendon) in practice and is carted off.
2. 2025 season: Alt’s high ankle sprain escalates; he misses most of the year and has surgery.
3. August 18, 2026: Biadasz goes down on the seventh first-team rep in the 49ers joint practice, carted with left-knee damage later confirmed as ACL plus more.

Herbert still dragged the 2025 team into the playoffs. The Wild Card exit against New England exposed the line’s limits once more. Entering 2026 the priority was clear: stabilize the interior and the edges so the quarterback could operate cleanly in Mike McDaniel’s scheme.

The $30 Million Reliability Signing Lasted One Practice Stretch

Biadasz arrived as the answer. Released by the Washington Commanders after two seasons as their starter, he signed a three-year $30 million contract with the Chargers in March. The deal carried a $9 million signing bonus and roughly $20 million guaranteed at an average of $10 million per year. He had been set for $8.3 million in Washington.

Over the previous five seasons he played 15 or more games each year for the Cowboys and Commanders. He earned a Pro Bowl nod after 2022. He started 31 games across his two years in Washington and all 49 games he played in Dallas after a 2020 fourth-round selection. The Biadasz player profile and career stats list him at 6-4, 318 pounds, a steady presence who upgraded the spot over Bradley Bozeman.

General manager Joe Hortiz treated the interior as a priority. Biadasz was the free-agent centerpiece. The reliability symbol lasted until the seventh rep of a joint practice.

Jake Slaughter Moves From Future Project to Immediate Starter

Hortiz had already drafted a contingency. With the No. 63 overall pick (acquired via trade with the Patriots), the Chargers took Florida center Jake Slaughter in the second round. The second-round pick Jake Slaughter was Dane Brugler’s top-ranked center prospect. At 6-5 and 303 pounds, the 23-year-old started 33 of 51 college games and earned second-team All-American honors in 2025 after allowing just four pressures and posting an 80.2 PFF run-blocking grade (second among FBS centers with 500+ snaps).

• Natural center only in college; Chargers also worked him at left guard in camp.
• Quick feet and zone-scheme fit for McDaniel’s offense.
• Stepped in with the first team immediately after Biadasz went down and finished the practice.
• Herbert praised his feel for the offense and pass protection after the session.

Stats snapshot on the replacement:

• College experience: 51 games, 33 starts at Florida
• 2025 production: 4 pressures allowed, 80.2 PFF run grade
• Draft slot: No. 63 overall, second round
• Immediate role: First-team center snaps vs. 49ers after the injury

Slaughter called Biadasz a wonderful mentor who helped him see the big picture. “I’d just take it as a blessing that I can help the team in any way I can,” he said of the sudden chance. He had mixed results against the 49ers (clean wins in the run game mixed with a couple of pressures allowed), but camp observers already viewed center as his best spot. Two sixth-round linemen (Logan Taylor and Alex Harkey) add further depth. Daniel Jeremiah noted the Chargers now have two rookie centers who fit the system, limiting the expected drop in offense.

Crowd reaction on X quickly shifted from pure gloom to recognition that Slaughter’s timeline just accelerated. Fans who saw him as the long-term center of the future now treat the injury as the moment the future arrives early.

What This Does to Herbert and McDaniel’s Plans

Herbert and the offense still had a strong red-zone stretch after Slaughter entered, scoring on four straight low-red-zone snaps with two Ladd McConkey touchdowns and an Omarion Hampton run. The two-minute period was messier; Slaughter was beaten for a sack that ended one series. The unit struggled overall with 49ers interior pressure, especially from Osa Odighizuwa.

McDaniel’s scheme leans on centers who can move and climb to the second level. Biadasz’s mobility made him an ideal fit. Slaughter shares those traits from his Florida tape. The question is how quickly a second-round rookie can handle NFL communication, blitz pickup and weekly game-planning while the tackles (Slater and Alt returning from their own 2025 injuries) try to stay healthy.

The Chargers host the 49ers again Thursday in the preseason. Biadasz will not play. Slaughter will get every first-team rep available. Hortiz’s draft bet is now the starting point rather than the insurance policy.

Depth Chart Reality Heading Into Cutdowns

Awosika remains at left guard. The interior still has options, but none match Biadasz’s five-year durability streak. The team has shown willingness to cycle through combinations. That approach failed last year once the injuries piled up. Herbert’s ability to create outside structure carried them then. Repeating the same high-wire act in 2026 would undercut Super Bowl talk that surrounded the roster after the offseason moves.

Second opinions will set the exact calendar. Garafolo’s long-term language and the multiple-ligament reports leave little room for an early return. Biadasz is under contract through 2028. The Chargers will hold his roster spot and hope the next MRI path points toward a mid- or late-season window rather than a full year. Until then the protection plan rests on a rookie who was still learning guard snaps a week ago.

The cart has rolled again. The pattern holds.