The award will be presented Feb. 4 in Indianapolis, when The Associated Press announces the winners of its annual NFL honors, including Most Valuable Player.
The only league award that recognizes a player's community service as well as his playing excellence, the Walter Payton winner will have a $20,000 donation made in his name to his favorite charity.
Rivers, Birk and Tillman were chosen from among the 32 team nominees, all of whom receive a $1,000 donation to the charity of their choice. The three finalists will receive an additional $5,000 donation in their name.
The selection panel includes NFL commissioner Roger Goodell, former commissioner Paul Tagliabue and Connie Payton, widow of the Hall of Fame running back.