| Henderson Alvarez, rhp |
Blue Jays | |||||||||||
| Double-A
New Hampshire (Eastern) |
Venezuela | |||||||||||
| Alvarez has moved a step at a time through the Jays system, up to Double-A this year after opening in high Class A, with his stuff getting better as he has matured. His fastball now touches 98 mph. | ||||||||||||
| Liam Hendriks, rhp |
Twins | |||||||||||
| Double-A
New Britain (Eastern) |
Australia | |||||||||||
| The Twins mine Australia as aggressively as any organization, and Hendriks could be their best find. He was knocked out of the Futures Game last year by an appendectomy. | ||||||||||||
| Kelvin Herrera, rhp |
Royals | |||||||||||
| Double-A Northwest Arkansas (Texas) |
Dominican Republic | |||||||||||
| Herrera got lost in the shuffle when he made just nine starts in two years due to elbow problems. A move to the bullpen has been the answer, as he has shown dominant stuff. | ||||||||||||
| Gregori Infante, rhp |
White Sox | |||||||||||
| Triple-A Charlotte (International) |
Venezuela | |||||||||||
| Infante took off after switching to relief and has already seen big league bullpen time. He will eventually find a permanent role there thanks to a fastball that can touch triple digits. | ||||||||||||
| Jhan Marinez, rhp |
Marlins | |||||||||||
| Double-A Jacksonville (Southern) |
Dominican Republic | |||||||||||
| The Marlins have a wealth of hard-throwing relievers in the minors, and Marinez stands out with an explosive fastball that can touch 98 mph. He has the stuff to close if he sharpens his command. | ||||||||||||
| Carlos Martinez, rhp |
Cardinals | |||||||||||
| Low Class A
Quad Cities (Midwest) |
Dominican Republic | |||||||||||
| After his signing with the Red Sox in 2009 was nixed and he was suspended for a year, Martinez signed with the Cardinals last summer and has shown this year what all the fuss was about. | ||||||||||||
| James Paxton, lhp |
Mariners | |||||||||||
| Low Class A Clinton (Midwest) |
Canada | |||||||||||
| Paxton didn't sign out of the 2009 draft, then held out until February before signing with the Mainers as their 2010 fourth-rounder. He has shown his potent fastball/curveball combination this season. | ||||||||||||
| Martin Perez, lhp | Rangers | |||||||||||
| Double-A
Frisco (Texas) |
Venezuela | |||||||||||
| Perez struggled for the first time in his career last year as a 19-year-old in Double-A, but his return trip has been much more successful and he has flashed his dominant form again. | ||||||||||||
| Julio Teheran, rhp |
Braves | |||||||||||
| Triple-A Gwinnett (International) |
Colombia | |||||||||||
| Teheran ranked as the top pitching prospect in the game coming into the season, and he earned his first big league callup in May. It won't be long before he's up in Atlanta permanently. | ||||||||||||
| Arodys Vizcaino, rhp |
Braves | |||||||||||
| Double-A Mississippi (Southern) |
Dominican Republic | |||||||||||
| Vizcaino ranked with Martin Perez and Julio Teheran as the best international amateur prospects signed in 2007. Vizcaino joined the Braves in the Javier Vazquez trade in December 2009. | ||||||||||||
| Wilin
Rosario, c |
Rockies | |||||||||||
| Double-A
Tulsa (Texas) |
Dominican Republic | |||||||||||
| Rosario was actually having his breakout season last year, but a torn ACL in August cut that short. He has picked up where he left off, though, offering premium tools at the plate and behind it. | ||||||||||||
| Sebastian Valle, c |
Phillies | |||||||||||
| High Class A Clearwater (Florida State) |
Mexico | |||||||||||
| After three nondescript seasons in the Phillies system, Valle has come on like gangbusters in the last two years, and the Phillies have traded away other catching prospects to clear the way for him. | ||||||||||||
| Yonder Alonso, 1b/of |
Reds | |||||||||||
| Triple-A Louisville (International) |
Cuba | |||||||||||
| Alonso continues to prove that he's a hitter, but with Joey Votto entrenched at first base in Cincinnati, he'll have to prove that he can hold down left field in the major leagues to get a full-time job. | ||||||||||||
| Alex Liddi, 3b |
Mariners | |||||||||||
| Triple-A
Tacoma (Pacific Coast) |
Italy | |||||||||||
| Liddi has gone from being a novelty as the first Italian position player to play organized baseball to putting himself on the brink of taking over at third base in Seattle. | ||||||||||||
| Jefry Marte, 3b |
Mets | |||||||||||
| High Class A
St. Lucie (Florida State) |
Dominican Republic | |||||||||||
| After taking two years to get through low Class A, Marte has shown the offensive potential that got him signed in 2007. He's also starting to tap into his raw power. | ||||||||||||
| Francisco Martinez, 3b |
Tigers | |||||||||||
| Double-A Erie (Eastern) |
Venezuela | |||||||||||
| Martinez jumped from the Gulf Coast League to high Class A in 2009 and has handled Double-A this season at age 20. He has prototype tools for third base, including a quick bat with power. | ||||||||||||
| Jose Altuve, 2b |
Astros | |||||||||||
| Double-A
Corpus Christi (Texas) |
Venezuela | |||||||||||
| Altuve was viewed almost as a curiosity coming into the season at a listed 5-foot-7, but he has shown strong offensive production this season to go along with his standout defense, so he's legit. | ||||||||||||
| Hak-Ju Lee, ss |
Rays | |||||||||||
| High Class A Charlotte (Florida State) |
South Korea | |||||||||||
| Lee joined the Rays in the Matt Garza trade with the Cubs in the offseason, and he is putting together the best offensive season of his career to complement his strong defensive skills. | ||||||||||||
| Jurickson Profar, ss |
Rangers | |||||||||||
| Low Class A Hickory (South Atlantic) |
Curacao | |||||||||||
| Profar has drawn notice since he led Curacao to the 2004 Little League World Series championship, and he has shown this season that it's warranted, with premium defense and hitting skills. | ||||||||||||
| Jonathan
Schoop, ss |
Orioles | |||||||||||
| High Class A Frederick (Carolina) |
Curacao | |||||||||||
| Schoop emerged as a prospect last year and put himself firmly in the Orioles' plans this year by performing with the bat and glove. He has the skills to play second or third base or shortstop. | ||||||||||||
| Chih-Hsien Chiang, of |
Red Sox | |||||||||||
| Double-A Portland (Eastern) |
Taiwan | |||||||||||
| The Red Sox signed Chiang in 2005, and he did little to stand out in his first five seasons. But his bat really came around this season, as he has shown an ability to hit for both average and power. | ||||||||||||
| Reymond Fuentes, of |
Padres | |||||||||||
| High Class A Lake Elsinore (California) |
Puerto Rico | |||||||||||
| Fuentes was part of the Padres' haul in the Adrian Gonzalez trade with the Red Sox in December, and his speed should make him the center fielder of the future in San Diego. | ||||||||||||
| Starling Marte, of |
Pirates | |||||||||||
| Double-A Altoona (Eastern) |
Dominican Republic | |||||||||||
| Marte has the speed and defensive ability to push Andrew McCutchen to an outfield corner when he arrives in Pittsburgh. He just need to continue improving his plate discipline. | ||||||||||||
| Alfredo Silverio, of |
Dodgers | |||||||||||
| Double-A Chattanooga (Southern) |
Dominican Republic | |||||||||||
| Silverio has moved slowly through the Dodgers system since signing in November 2003, but neither he nor the Dodgers gave up and it looks like their patience is paying off this season. | ||||||||||||
| Dayan Viciedo, of |
White Sox | |||||||||||
| Triple-A Charlotte (International) |
Cuba | |||||||||||
| After working on the infield corners in his first two years in the White Sox organization, Viciedo has played right field this year and should be able to stay in the outfield. His bat should play anywhere. | ||||||||||||