MLB Showdown League
The 2003 MLB Showdown League promo set consisted of 59 cards. (As an eBay Partner, I may be compensated if you make a purchase) (eBay Link)
P01- Aaron Guiel
P02- Abraham Nunez
P03- Al Levine
P04- Armando Rios
P05- Aubrey Huff
P06- Brandon Berger
P07- Carlos Baerga
P08- Chris Richard
P09- Corky Miller
P10- Damaso Marte
P11- Darren Holmes
P12- Denny Hocking
P13- Erubiel Durazo
P14- Giovanni Carrara
P15- Joe McEwing
P16- Kerry Robinson
P17- Lenny Harris
P18- Mark DeRosa
P19- Mark Ellis
P20- Miguel Tejera
P21- Olmedo Saenz
P22- Pedro Feliz
P23- Tomas Perez
P24- Wendell Magee
P25- Willis Roberts
P26- Benito Santiago
P27- Mike Sweeney
P28- Fernando Vina
P29- Troy Glaus
P30- Barry Larkin
P31- Manny Ramirez
P32- Steve Finley
P33- Shannon Stewart
P34- Frank Thomas
P35- Jamie Moyer
P36- Jon Lieber
P37- Mark Mulder
P38- Roger Clemens
P39- Jorge Posada
P40- Corey Koskie
P41- Shawn Green
P42- Phil Nevin
P43- Gary Sheffield
P44- Craig Biggio
P45- Alan Embree
P46- Jesse Orosco
P47- Mike Stanton
P48- Brandon Duckworth
P49- Troy Percival
P50- Robb Nen
P51- Pee Wee Reese
P52- Freddy Garcia
P53- Luis Gonzalez
P54- Jim Thome
P55- Bernie Williams
P56- Ivan Rodriguez
P57- Ryan Klesko
P58- Jamie Moyer
P59- Roy Oswalt