Addae tumbled to the grass after the first hit of the game and appeared to go into convulsions while still standing after another tackle in the third quarter.
"Like every player, regardless of what the injury is, you monitor him throughout the game, and that's exactly what they did with Jahleel," coach Mike McCoy said Friday before the team announced the diagnosis. "... From first time he was checked out and throughout the game."
Asked if he saw the hits Addae absorbed against Denver, McCoy said: "I watched the film about three times. And I was at the game. I was watching the game. I was there. I was watching it."