League Top 20 Prospects

Arizona League Top 20 Prospects

See also: AZL Top 20 Prospects With Scouting Reports Premium

1. Guillermo Pimentel, of, Mariners
2. Yordano Ventura, rhp, Royals
3. Robinson Yambati, rhp, Royals
4. Tyler Roberts, c, Brewers
5. Junior Arias, ss, Reds
6. Donavan Tate, of, Padres
7. Cheslor Cuthbert, 3b, Royals
8. Luis Sardinas, ss, Rangers
9. Ismael Guillon, lhp, Reds
10. James Baldwin, of, Dodgers
11. Austin Reed, rhp, Cubs
12. Jonathan Correa, rhp, Reds
13. Chuckie Jones, of, Giants
14. Christian Villanueva, 3b, Rangers
15. Carlos Melo, rhp, Rangers
16. Heath Hembree, rhp, Giants
17. Chevez Clarke, of, Angels
18. Ji-Man Choi, 1b/c, Mariners
19. Teodoro Martinez, of, Rangers
20. Ralston Cash, rhp, Dodgers
Baseball America's League Top 20 lists are generated from consultations with scouts and league managers. To qualify for consideration, a player must have spent at least one-third of the season in a league. Position players must have one plate appearance for every league game. Pitchers must pitch 1/3 inning for every league game, and relievers have to have made at least 20 appearances in full-season leagues and 10 in short-season ones.

TEMPE, Ariz.—Bonus babies Michael Ynoa and Donavan Tate were the preseason favorites to rank as the Arizona League's top prospect. Instead, Mariners outfielder Guillermo Pimentel and lesser-known Royals righthanders Yordano Ventura and Robinson Yambati headlined our Top 20 Prospects list for the Rookie league in a year where there was no clear choice for No. 1.

Pimentel drew raves for his plus-plus power and five-tool potential. Ventura, who operates in the mid-90s with his fastball, and Yambati, whose heater can reach that high, had the two best arms in the league.

Meanwhile, Ynoa and Tate were disappointments. Ynoa, who signed for a Dominican-record $4.25 million in 2008, made his first pro appearance after missing all of 2009 with elbow tendinitis. He hit 95 mph while throwing three scoreless innings on Opening Day, but he pitched only twice more before being shut down again with elbow soreness. He had Tommy John surgery in late August.

The third overall pick in the 2009 draft, Tate saw his progress stymied by an ongoing stomach ailment that sidelined him for large portions of the season. When he did play, he showed much more athleticism than hitting aptitude, striking out 41 times in 90 at-bats.

Eight of the 29 first-round picks from the 2010 draft who signed made their pro debuts in the AZL, but only Angels outfielder Chevez Clarke played enough to qualify for this list. Clarke, who ranked No. 17, stuck out for his raw athleticism but his instincts need work.

Subscribers can see scouting reports for the entire Arizona League Top 20 Prospects list. Premium