The following are the top-rated MLS players by position, based on the Soccer America Report Cards, with their average ratings through games played May 12: GOALKEEPERS 1. Adin Brown (Colorado), Scott Garlick (Tampa Bay), Nick Rimando (Miami), Zach Thornton (Chicago) 5.83. 5. Tom Presthus (Columbus) 5.80. 6. Mike Ammann (D.C. United) 5.60. 7. Joe Cannon (San Jose), Matt Reis (Los Angeles), Juergen Sommer (New England) 5.50. 9. Tim Howard (MetroStars), Tony Meola (Kansas City) 5.14. DEFENDERS 1. Carlos Bocanegra (Chicago) 6.17. 2. Pablo Mastroeni (Miami) 5.83. 3. Jeff Agoos (San Jose), Tenywa Bonseu (Columbus) 5.80. 5. Carlos Llamosa (Miami) 5.67. 6. Steve Jolley (MetroStars) 5.57. 7. C.J. Brown (Chicago), Jorge Rodriguez (Dallas), Chris Ziadie (D.C. United) 5.50. 10. Ryan Suarez (Dallas) 5.40. MIDFIELDERS 1. Marcelo Balboa (Colorado), Ian Bishop (Miami) 6.25. 3. Chris Armas (Chicago), Bobby Convey (D.C. United), John Wilmer Perez (Columbus) 6.00. 6. Matt McKeon (Kansas City) 5.86. 7. Carlos Valderrama (Tampa Bay) 5.83. 8. Diego Gutierrez (Chicago) 5.75. 9. Tab Ramos (MetroStars) 5.71. 10. Scott Bower (San Jose), Manny Lagos (San Jose), Mark Lisi (D.C. United), Peter Nowak (Chicago), Ian Russell (San Jose) 5.67. STRIKERS 1. Clint Mathis (MetroStars) 6.67. 2. Mamadou Diallo (Tampa Bay), Jaime Moreno (D.C. United) 6.25. 4. Alex Pineda Chacon (Miami), John Spencer (Colorado) 6.20. 6. Dwayne DeRosario (San Jose), Rodrigo Faria (MetroStars), Cobi Jones (Los Angeles), Josh Wolff (Chicago) 6.00. 10. Landon Donovan (San Jose) 5.80. ò Minimum of three games rated.