Los Angeles Chargers wide receiver Mike Williams is expected to sit out the entirety of training camp due to a back injury.

And while the Chargers are optimistic their first-round pick won’t require surgery, head coach Anthony Lynn was noncommittal when asked if Williams’ injury will cost him his rookie year.

“I’m hopeful that it’s not, but who knows? It could be,” Lynn said Sunday, according to Dan Woike the Los Angeles Times.

While the loss of Williams for training camp – and possibly the season – is a significant blow for L.A., it has the depth at receiver to survive, with the returning Keenan Allen heading up a group that also includes Travis Benjamin, Tyrell Williams, and Dontrelle Inman.

“We’re excited about Mike. I was super excited when we drafted him,” quarterback Philip Rivers said. “He’s big, tall, and can run … I say that to say I’m really thankful for the guys we already have in the receiver room. It’s really a good group…. Thankfully, it’s not a position where you’re drafting a guy No. 7 and he has to be our guy. When he’s out there, yes, it’ll enhance that group. But so far, we have enough pieces to feel like we’re in good shape.”

Copyright © 2017 Score Media Ventures Inc. All rights reserved. Certain content reproduced under license.