The Chargers officially announced on Thursday that they’ve placed running back Najee Harris on the non-football injury list.

Chargers Head Coach Jim Harbaugh and quarterback Justin Herbert took the podium at The Bolt on Day 1 of Chargers Training Camp. Below are three takeaways from their media availability Thursday:

The Chargers were the first team to open training camp this season, and they also have a lot of movement with their roster. Mike Williams informed the Chargers on Thursday that he plans to retire, and running back Najee Harris was placed on the active/non-football list due to an eye injury.

The Pittsburgh Steelers have running back action to fill this season after Najee Harris left for the Los Angeles Chargers. They know they can count on returner Jaylen Warren. And they hope they can count on rookie Kaleb Johnson from Iowa. But they also added another RB this offseason: Kenneth Gainwell.

ANTIOCH — A Fourth of July fireworks explosion injured Antioch native and NFL running back Najee Harris, multiple sources have confirmed to the Bay Area News Group, but his agent assured fans that Harris would be ready for the upcoming season.