"Survivor" Returns Tonight, Jimmy Johnson's On Tribe "Espada"

When "Survivor" returns to the airwaves for a 21st season tonight, there will be a sports celebrity in the mix. Competing for the one-million-dollar grand prize on "Survivor: Nicaragua" is former Dallas Cowboys coach, Jimmy Johnson. This season also has a twist as it pits "mature" competitors against more youthful ones. The "Espada" tribe will consist of participants age 40 and older. Tribe "La Flor" won't have any members older than 30. Johnson -- who is 67 -- will put his coaching talents and other skills to use for team "Espada." "Survivor: Nicaragua" will premiere on CBS tonight at 8:00 p.m. Eastern and Pacific.