Not that we’d ever underestimate our readers, but baseball’s a long season and you've probably fallen behind on the who's-who in 2012. Don't worry, we don't blame you. The season extends from Easter through Halloween, in a 162-game stretch that only losers like Tim Kurkjian can stay excited about. Well, the All-Star Break is over so it’s time to catch up on all the players you’ve been sleeping on. Plus, it’s way too hot to do anything outside. Sit back, turn on a ballgame, and we’ll dope you on 20 MLB Players You (Probably) Haven't Heard of to Watch in the Second Half.