The Los Angeles Chargers and quarterback Justin Herbert have agreed to terms on a five-year, $262.5 million contract extension, sources told ESPN's Adam Schefter. The deal comes a day before the Bolts open training camp and keeps Herbert, 25, under contract in L.A. through the 2029 season.

The deal includes $133.7 million fully guaranteed, $193.7 million with an injury guarantee and jumping potentially to $218.7 million guaranteed, sources tell ESPN.

The team announced a multiyear extension for their franchise quarterback but did not disclose specific terms.

Kellen Moore, who has been around Dak Prescott since 2016, had high praise for the Dallas Cowboys quarterback.

"He's the best leader I've ever been around," Moore told Peter Schrager. "Player or coach or ... anything."

Moore left the Cowboys this offseason to become the offensive coordinator of the Los Angeles Chargers.

"The best person. I think the best leader I've ever been around, easily," Moore said.

"And in all honesty, player or coach or anything. I think his ability to connect with a team in all spectrums is rare and I've never seen it in any other way. His work ethic, his command, I think he's incredible. We've all been through that Dallas journey and he has a phenomenal way of being able to deal with probably more than your average NFL starting quarterback. And he handles it beautifully. He's certainly a guy you forever root for."