Rookie rankings: Fernandez new No. 1

Jose Fernandez had the most impressive outing of any pitcher in the All-Star Game. Elsa/Getty Images

It's been an incredible year for rookies, particularly in the National League, and we saw that first-hand in Tuesday's All-Star Game. Miami Marlins right-hander Jose Fernandez, who has allowed two runs or fewer in seven of his past eight starts, was as good as anyone that night, striking out two batters in his lone inning of work.

Rays manager Joe Maddon told me that Fernandez is the best 20-year-old pitcher he's ever seen, and I have to concur. That's why he leads the latest edition of my rookie rankings.

1. Jose Fernandez | RHP | Stock: Up

Buster Posey, the Giants' All-Star catcher, who caught Fernandez in the All-Star Game, said afterward, "He really impressed me especially given the situation he was pitching in. I thought he’d have nerves because of all the excitement but instead he demonstrated great poise and composure. We all know his stuff speaks for itself."