Los Angeles Chargers QB Justin Herbert (ribs) expected to decide on painkilling shot during Sunda...

Los Angeles Chargers quarterback Justin Herbert is expected to make a decision during pregame warm-ups on Sunday about whether to take a painkilling injection in his fractured rib cartilage to try to play against the Jacksonville Jaguars, sources told ESPN's Adam Schefter.

Herbert is active for Sunday's game, but the decision to play bounced back and forth throughout the week, Schefter reported. The Chargers also have quarterbacksChase Daniel and Easton Stickavailable to play against the Jaguars.

Herbert was injured against the Kansas City Chiefs in Week 2, taking a hit from defensive end Mike Danna that left him lying on the field for an extended period.

"It's day-by-day, just waiting to see how he feels," Chargers coach Brandon Staley said Friday. "We're going to progress through the rest of this week and see how it goes."

Meanwhile, Herbert will not have wide receiver Keenan Allen or center Corey Linsley, as both are inactive for Sunday's game. Cornerback J.C. Jackson is also out.