The Braves and Chief Noc-A-Homa, the team mascot who has become a huge fan favorite in Atlanta with his spirited dances when a homer is hit by the home team, agree to end their 17-year association. Levi Walker, the third person to play the role for the franchise, is reportedly dissatisfied with his pay of $60 a game, and club officials were unhappy with the Georgia native’s failure to attend seven scheduled appearances last year.