McConkey will undergo further testing Monday for a potential rib injury sustained in Sunday's 26-14 loss to the Cardinals, Ian Rapoport of NFL Network reports.
McConkey was knocked out of the game late in the third quarter after absorbing a thunderous hit over the middle. He immediately grabbed at his chest and back, and the Chargers initially classified the injury as a chest issue. McConkey will presumably undergo X-rays and an MRI on Monday, and the team will then likely provide an update on the exact nature of his injury.