The leader of out Pac. Sadie the Cattle Dog. In 2007, Sadie was forced to retire from Flyball due to PRA (Progressive Retinal Atrophy). This genetic disease causes her retinal cells to slowly die off. Fortunately, Sadie’s other senses are well developed and she’s a very functional blind dog. Sadie is now enjoying her retirement in Tyler, Texas with Robbie’s daughter Jessica.