He was traded to the Philadelphia Eagles and then by the Eagles to the Atlanta Falcons, where began his NFL career in 1969. Zook played 144 games in the NFL and was a Second-team All-Pro selection in 1973.
The player was traded from the Philadelphia Eagles to the Atlanta Falcons by the Eagles, beginning his NFL career in 1969. Over 144 games, Zook achieved recognition as a Second-team All-Pro in 1973.