To avoid the snubbing of any deserving rookies, here are five that just barely missed the list, but still are in need of a mention. It also would not be much of a surprise if some of these names would be worthy of being posted high up on the actually list in a month or two.
Drew Storen, RHP—Washington Nationals: He's appeared 10 times in a relief role for the Nationals and has given up only two earned runs in 9.1 innings pitched. As their top reliever prospect, the Nationals expect this production to continue as Storen will one day close games for the team.
Buster Posey, C/1B—San Francisco Giants: He has not experienced much big league action just yet, but in nine games and 33 at bats, he has hit safely 15 times, good for a .455 batting average. The Giants hope he can live up to his hype, and he has set off on the right foot.
Starlin Castro, SS—Chicago Cubs: This 20-year-old has hit a pair of home runs while batting .272 in 28 games for the Cubs. The Cubs may have a rare homegrown gem here, especially if his batting improves, considering that he hit .376 at AAA this year.
John Ely, RHP—Los Angeles Dodgers: A relatively no-name starter rising to the occasion in the bigs, Ely has been a pleasant surprise for the team, looking like the most consistent starter in that Dodger rotation. He has posted an ERA of 3.00 and a WHIP of 1.06 in eight starts.
Jhoulys Chacin, RHP—Colorado Rockies: His ERA has ballooned a bit to 3.77 of late, but he's got a great arm that can easily record strikeouts. He's collected 45 through his 43 innings pitched.
Gaby Sanchez, 1B—Florida Marlins: Sanchez has been able to come up with big hits and drive and runs, and has been useful up and down the Florida lineup. He has hit four home runs through 55 games, driving in 21.
*Oh and Stephen Strasburg should get a mention here. He missed the list because It got published before he made his start. 14 srikeouts to 0 walks, even against the Pirates is literally something else. At this rate, expect to see Strasburg way up on this list as the season rolls on.