"If you're a Green Bay Packer, a lot doors open up for you. If you win a championship, all doors open up, but when you're in the Hall of Fame, football heaven opens up for you."
That's newly minted Pro Football Hall of Famer, LeRoy Butler ... who tells TMZ Sports the opportunities have been rolling in since his enshrinement in Canton.
"My assistant is getting a lot of phone calls," the 54-year-old former Packers star says, adding ... "Some of them are just to feel you out, but some of them are stuff that I always wanted to work on.