Ranking the USMNT's top 15 prospects age 21 or younger, from Europe to MLS

The article provides a ranking of the top 15 prospects for the United States Men's National Team (USMNT) who are currently aged 21 or younger. These prospects are evaluated across different football environments, ranging from European clubs to Major League Soccer (MLS). The ranking serves as an assessment of the future talent pool available to the USMNT.