As the NFL celebrates 100 years, it is revealing the 100 greatest players and 10 greatest coaches in the league's history.
Friday night Clark was announced as a member of the NFL100 All-Time Team.
Clark joins greats including Jim Brown, Emmitt Smith, Eric Dickerson, Barry Sanders, and Walter Payton.
The NFL also announced Bill Belichick and Paul Brown as two of the top 10 coaches.
The complete NFL100 All-Time Team will be announced during a one-hour special on the NFL Network.