Claim: Professional basketball players often play collegiately before joining professional basketball clubs.
Evidence: The One-and-Done rule has been a part of the Collegiate Basketball since 2006, the first NBA draft it affected. The rule was created by NBA Commissioner, David Stern, which changed the draft age from 18 years old to 19 years old. This change meant players could not be drafted into the NBA straight out of high school. Instead, however, they usually went to a college to play only one season before entering the following NBA draft when they are eligible, hence the name One-and-Done.