What Happened to the USMNT Quotes

“An ugly truth is that less than 1 percent of the boys who enter Top Five League club youth academies at the age of nine make it as a professional soccer player at any level. For those who are at youth academies at age 16, five out of six (83 percent) are not playing professional soccer at any level at age 21.150”
― Steven G. Mandis, What Happened to the USMNT: The Ugly Truth About the Beautiful Game