Here's a look at MLB.com's 2004 preseason Top 50 Prospects list:

1. Joe Mauer, C, MIN
2. BJ Upton, SS, TB
3. Greg Miller, LHP, LAD
4. Zack Greinke, RHP, KC
5. Edwin Jackson, RHP, LAD
6. Cole Hamels, LHP, PHI
7. Rickie Weeks, 2B, MIL
8. Scott Kazmir, LHP, NYM
9. Grady Sizemore, OF, CLE
10. Alexis Rios, OF, TOR
11. Delmon Young, OF, TB
12. Prince Fielder, 1B, MIL
13. Gavin Floyd, RHP, PHI
14. Andy Marte, 3B, ATL
15. Adam Loewen, LHP, BAL
16. Jeremy Reed, OF, SEA
17. Josh Barfield, 2B, SD
18. Chin-Hui Tsao, RHP, COL
19. Jeff Mathis, C, LAA
20. Guillermo Quiroz, C, TOR
21. Ervin Santana, RHP, LAA
22. Casey Kotchman, 1B, LAA
23. Bobby Crosby, SS, OAK
24. Dustin McGowan , RHP, TOR
25. JJ Hardy, SS, MIL
26. Jeremy Hermida, OF, MIA
27. Justin Morneau, 1B, MIN
28. Jeff Francoeur, OF, ATL
29. David Wright, 3B, NYM
30. Denny Bautista, RHP, BAL
31. Clint Nageotte, RHP, SEA
32. Adam Wainwright, RHP, STL
33. Travis Blackley, LHP, SEA
34. Franklin Gutierrez, OF, LAD
35. Merkin Valdez, RHP, SF
36. Dallas McPherson, 3B, LAA
37. Felix Pie, OF, CHC
38. Bobby Brownlie, RHP, CHC
39. José López, SS, SEA
40. Jason Bay, OF, PIT
41. Jason Stokes, 1B, MIA
42. Sean Burnett, LHP, PIT
43. Ryan Harvey, OF, CHC
44. Dioner Navarro, C, NYY
45. Taylor Buchholz, C, MIN
46. David DeJesus, OF, KC
47. Chadd Blasko, RHP, CHC
48. John Van Benschoten, RHP, PIT
49. Chris Snelling, OF, SEA
50. James Loney, 1B, LAD