Samuels, who suffered a serious neck injury about two weeks ago against the Carolina Panthers, reached his decisions after consulting with many specialists, several of whom warned him about the possibility of no longer being able to walk if he attempted to prolong his career, league sources said.
However, a source close to Samuels, 32, said he would not make a final determination on retirement until December or January -- and would withhold a public announcement until that time.
"I will continue to seek medical advice. I hope to see where I am physically over the next couple months," Samuels said in a statement released by the Redskins Friday. "At this time, I have not made a decision, but I love playing for the Redskins and hope to be back."