Each MLB season, a handful of players take a major step forward and join the ranks of the game's elite. In the starting rotation, that sort of emergence can play a major role in the team's present and future success.
Texas Rangers right-hander and Japanese import Yu Darvish was solid in his first big league season last year. In 2013, he's been nothing short of dominant out of the gates, pitching like a legitimate staff ace.
He's not the only one who has made the leap to ace status. Here is a look at the MLB's new crop of top aces.