Stevie Johnson will need to undergo surgery on his torn meniscus.

Johnson was scheduled to be the San Diego Chargers No. 3 wide receiver.

"He'll have a medical procedure done in the next couple days," Mike McCoy said. "And then we'll have a better idea on how long he will be out, once that procedure takes place. But I can't give you any dates. We'll give you some rough estimates after he gets it cleaned up.

"It's an unfortunate situation for everything he's done at this time, but we'll go on from there," McCoy added.