It is more about a promise he made to his parents when he turned professional at 18 years old .
Vieira added that his eventual decision to move home is not about him liking or disliking the United States .
It is more about a promise Vieira made to Vieira 's parents when he turned professional at 18 years old .
Vieira added that his eventual decision to move home is not about him liking or disliking the United States .