Three questions about the Chargers as rookies report to camp

The Los Angeles Chargers 2023 rookie class reports to Costa Mesa, California on Wednesday. While the top of the roster is mostly filled out, there is wiggle room further down the depth chart where some of these rookies could make an impact.

What roles do Quentin Johnston and Derius Davis carve out?

L.A.'s first-round pick in this year's NFL Draft, Johnston's floor is listed as the No. 4 receiver behind Keenan Allen, Mike Williams and Joshua Palmer. It's unlikely Allen or Williams are flat-out supplanted as either of the top two receivers in the offense, but Johnston's near-identical skill set to that of Williams will further complement Justin Herbert's best trait in the deep ball. Regardless of where he falls on the depth chart, Johnston will be used in the deep game.

Davis, L.A.'s fourth-round pick in the draft, is the frontrunner to win the kick returner and punt returner jobs. Offensively, Davis profiles as a speedy slot receiver — a role currently occupied by Allen. Davis won't supplant Allen, but is a good backup should Allen see similar injury issues to those of last season.

How much of an impact will Tuli Tuipulotu make?

L.A. hopes to get a full season of the Joey Bosa-Khalil Mack duo in 2023. Even if both remain healthy all season, the commodity of having a third effective pass rusher to spell either would put the Chargers at an enormous advantage. L.A.'s second-round pick out of USC, Tuipulotu is the frontrunner to play this role, and he'll have little-to-no competition with Kyle Van Noy leaving in free agency.

How does the running back depth chart shake out?

Joshua Kelley and Isaiah Spiller are set to battle it out for the No. 2 running back job behind Austin Ekeler. Larry Rountree III is in the mix as well. None of the three have made significant impressions as potential No. 2 backs worthy of increased touches in Kellen Moore's offense.

Enter undrafted free agents Elijah Dotson out of Northern Colorado and Tyler Hoosman out of North Dakota. It's unlikely either win the backup job in training camp, but either could plant the seed to make the 53-man roster or practice squad and see meaningful touches later in the season — especially if no true No. 2 running back emerges in the offense early in the season.