Assertion: league's player | /r/HasProperty | ineligible
Facets:
value: since 2006
type: TEMPORAL
Source sentences:
text: Since 2006, players that are not at least nineteen years old by the end of the calendar year have been ineligible, creating what became known as the "one-and-done" rule where players joined a college basketball team for one season and would then leave for the NBA.