John Abraham has taken a leave of absence from the Arizona Cardinals after leaving their Week 1 win with a concussion.
It was the first reported concussion of Abraham's 15-year career, according to ESPN Stats & Information.
Abraham is suffering from severe memory loss and has been for well more than a year, sources told ESPN NFL Insider Adam Schefter. Abraham believes he needs to take time to get well, Schefter reported.
"We mentioned the concussion but it was nothing as much as not being accountable to his teammates and having the full desire to play," Arians said. "I did not see the evidence of that. In his play, I thought he played his tail off."