The Chargers only had 2016 first round pick Joey Bosa for 12 games. They might not have 2017 first round pick Mike Williams for any games.
The wide receiver from Clemson who the Bolts took with the 7th overall pick then signed to a $19.75 million, fully-guaranteed contract, missed all but one day of off-season workouts with a back issue. The Chargers said they hoped Williams would be available when training camp starts on July 30.
However, according to a report from ESPN's Adam Schefter, Williams had to have a second epidural on his back and may need season-ending surgery to repair a herniated disc. It's unclear when the injury occurred but very possible that Williams was already hurt when the team selected and signed him.
It could be the reason that the Chargers, who are notoriously bad at coming to terms with Draft picks (hence the Bosa debacle), were able to get Williams under contract so quickly. Williams signed his deal on May 11, one of the earliest 1st rounders to sign.
The Chargers took Williams 7th overall partially because they needed depth at wide receiver. Keenan Allen has missed the last season and a half with kidney and knee injuries. Tyrell Williams and Travis Benjamin were both slowed by injuries in 2016, as well.