Mike Trout is just 22 years old and nearing the end of his second Major League season.
Baseball-Reference credits Trout as being worth 20 Wins Above Replacement over his career, an astounding number for a player that has played in just 315 games.
A player generally becomes a legitimate Hall of Fame candidate when he gets into the 50-60 WAR range, meaning Trout is on place to reach that level in 2-3 years at his current level of production. Even at a fraction of his current level, Trout is 6-8 weeks away from the conversation.