Herbert - who had been listed as questionable ahead of the matchup - started over backup quarterback Chase Daniel oSunday at SoFi Stadium.
Herbert has thrown six touchdowns this season, despite leaving last week's game prematurely. Entering Sunday, he ranked fifth in completion percentage with a 72% success rate on passes in 2022.
The third-year quarterback threw for more than 5,000 yards in a Pro Bowl campaign last season and was unanimously named the NFL's offensive rookie of the year in 2020.
Herbert, 24, was a first-round pick out of the University of Oregon. He won the 2019 Pac-12 championship with the Ducks and was named MVP of the 2020 Rose Bowl.
This article originally appeared on USA TODAY: Justin Herbert injury: Chargers QB active for Week 3 vs. Jaguars