Only 7 days before Robert Griffin III became the first rookie quarterback of the modern era to rush for 100 yards and two touchdowns, a blow to the head made him woozy enough to wonder whether he was RGIII, II or I.

“I still refuse to say I had a concussion,’’ Griffin said of the hit that knocked him out of the Redskins’ loss to the Falcons on Oct. 7. “I had temporary memory loss.”

We all can agree it falls under the category of brain injury. Yet there was Griffin on Sunday in a victory over the Vikings, running for 137 yards as if nothing ever happened, muddling the NFL’s message on concussion awareness and player safety.