The 30-year-old cornerback was suspended four games without pay by the NFL on Tuesday afternoon for violating the league's performance-enhancing drug policy. According to several reports, Griffin tested positive for the ADHD drug Adderall, and joins what is becoming a lengthy list of players who are believed to have been caught using the drug to increase their performance.
Griffin signed a one-year contract worth $2.5 million with the Redskins this past offseason. According to Shanahan, the organization will determine whether he will be brought back following the season. Prior to joining the Redskins, Griffin spent six seasons with the Minnesota Vikings.