The Los Angeles Chargers have one more preseason tune-up before they start to get ready for Week 1 of the NFL regular season. On Saturday, they will take the field at Levi's Stadium versus the San Francisco 49ers for their final exhibition game.

Per NBC 's Pro Football Talk , coach Jim Harbaugh will not play his starters on Saturday. Trey Lance, the former 49ers quarterback, will start under center, and it will be an opportunity for some of L.A.'s young second and third-stringers to prove that they can contribute.

But even though quite a few people expect the Chargers to be very competitive this season, the team is facing injury problems. Wide receiver Quentin Johnston suffered a concussion in last weekend's preseason game against the Los Angeles Rams, and starting running back Naj

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