The 33-year-old Italian keeper wants to remain at Juventus as long as they want him.
Buffon has been linked with several clubs including Manchester City and Roma this summer.
“I never thought to come (to the USA) to end my career and I’ll play at Juve for as long as they have confidence in me,” he told Ansa.
“In three or four years I have in my head the crazy idea of coaching the United States national team, or the China national team.
“They would both be great experiences.”
