Quentin Johnston and Ladd McConkey will once again lead the Chargers' receiving corps in the wake of Mike Williams' retirement, but can the unit improve?

Chargers receiver Quentin Johnston was transported to a local hospital for precautionary reasons after suffering a concussion ...

Los Angeles Chargers wide receiver Quentin Johnston was carted off the field following a big hit on the opening series of the ...

Third-year wide receiver Quentin Johnston was carted off the field after taking a big hit during the Chargers' 23-22 ...

Coach Jim Harbaugh said Johnston sustained a concussion during Saturday's 23-22 preseason loss to the Rams, Kris Rhim of ESPN.com reports. Johnston was on the receiving end of a big hit from a Rams ...

Chargers wide receiver Quentin Johnston's head bounced off the turf after he took a big hit on an incomplete pass.

Chargers head coach Jim Harbaugh confirmed that wide receiver Quentin Johnston suffered a concussion in the preseason loss to ...

The wide receiver remained down on the field for several minutes before rising and walking under his own power to a nearby ...

Los Angeles Chargers wide receiver Quentin Johnston was transported to a local hospital after leaving his team’s Week 2 ...

He took a hard hit from Rams safety Tanner Ingle during the game’s opening series while running a deep route down the Rams’ ...

Los Angeles Chargers wide receiver Quentin Johnston suffered a concussion on a hard hit from a Los Angeles Rams defensive ...

Los Angeles Chargers wide receiver Quentin Johnston was carted off the field during the team's preseason matchup with the Los ...