Being a teenager in a major sports league, let alone the NBA, can be extremely challenging.
Only a few years ago, you were sitting in a classroom, working out algebra problems, now you're under the bright lights of Madison Square Garden playing against the best basketball players night in and night out across an 82-game season.
The change from an everyday kid who's good a basketball to an NBA rookie can be a very startling one, and even though the NBA has prohibited high schoolers from entering the NBA draft -- requiring them to go to college for at least one year or play overseas for one season -- it's no wonder it takes the majority of NBA teenagers a few years to acclimatise to the league. But not for these three players.
These three players are the only teenagers in NBA history to average over 20 points per game in an NBA season, quite the impressive feat for a player with less than 20 years of experience on planet Earth. Via Reddit user sip-em_bears:
Carmelo Anthony (19 Years Old) - 21.0 PPG in 2004
LeBron James (19 Years Old) - 20.9 PPG in 2004
Kevin Durant (19 Years Old) - 20.3 PPG in 2008
These players obviously aren't in their teens anymore and have all turned into some of the greatest scorers the NBA have ever seen, only showing that this trio was NBA-ready right off the bat.