Oakland Raiders linebacker Rolando McClain, right, puts a hit on San Diego Chargers running back Darren Sproles in the first half during their NFL football game, Sunday, Dec. 5, 2010, in San Diego. (AP Photo/Denis Poroy)
SAN DIEGO (AP) — Chargers running back Darren Sproles sustained a concussion when he was knocked down by a helmet-to-helmet hit by Oakland's Rolando McClain just before halftime Sunday.
Sproles caught a pass from Philip Rivers and was turning to run when he was hit by McClain. The Raiders linebacker led with his shoulder, but the side of his helmet hit Sproles' helmet. Sproles was on the ground for a few minutes before walking off the field.