The 2003 roster for the Cubs included Carlos Zambrano at pitcher, Damian Miller at catcher, Eric Karros at first baseman, Mark Grudzielanek at second baseman and Aramis Ramirez at third baseman.

	NAME	POS	HEIGHT	WEIGHT	DOB	AGE	BIRTHPLACE
1	Antonio Alfonseca A. Alfonseca	P	6'5"	250	4/16/1972	31	La Romana, Dominican Republic
2	Moises Alou M. Alou	OF	6'3"	230	7/3/1966	36	Atlanta, GA
3	Paul Bako P. Bako	C	6'3"	210	6/20/1972	31	Lafayette, LA
4	Mark Bellhorn M. Bellhorn	3B	6'1"	205	8/23/1974	28	Boston, MA
5	Alan Benes A. Benes	P	6'5"	215	1/21/1972	31	Evansville, IN
6	Joe Borowski J. Borowski	P	6'2"	215	5/4/1971	32	Bayonne, NJ
7	Hee-Seop Choi H. Choi	1B	6'4"	250	3/16/1979	24	Hwasun, South Korea
8	Matt Clement M. Clement	P	6'2"	200	8/12/1974	28	Butler, PA
9	Juan Cruz J. Cruz	P	6'2"	170	10/15/1978	24	Bonao, Dominican Republic
10	Shawn Estes S. Estes	P	6'1"	210	2/18/1973	30	San Bernardino, CA
11	Kyle Farnsworth K. Farnsworth	P	6'4"	230	4/14/1976	27	Wichita, KS
12	Doug Glanville D. Glanville	OF	6'2"	175	8/25/1970	32	Hackensack, NJ
13	Alex Gonzalez A. Gonzalez	SS	6'0"	200	4/8/1973	30	Miami, FL
14	Tom Goodwin T. Goodwin	OF	6'0"	195	7/27/1968	34	Fresno, CA
15	Mark Grudzielanek M. Grudzielanek	2B	6'1"	195	6/30/1970	33	Milwaukee, WI
16	Mark Guthrie M. Guthrie	P	6'4"	215	9/22/1965	37	Buffalo, NY
17	Lenny Harris L. Harris	3B	5'10"	235	10/28/1964	38	Miami, FL
18	Jose Hernandez J. Hernandez	3B	6'1"	190	7/14/1969	33	Rio Piedras, Puerto Rico
19	Bobby Hill B. Hill	2B	5'10"	175	4/3/1978	25	San Jose, CA
20	Trenidad Hubbard T. Hubbard	OF	5'9"	200	5/11/1964	39	Chicago, IL
21	Eric Karros E. Karros	1B	6'4"	225	11/4/1967	35	Hackensack, NJ
22	David Kelton D. Kelton	OF	6'3"	195	12/17/1979	23	Dothan, AL
23	Kenny Lofton K. Lofton	OF	5'11"	190	5/31/1967	36	East Chicago, IN
24	Ramon Martinez R. Martinez	2B	6'0"	190	10/10/1972	30	Philadelphia, PA
25	Damian Miller D. Miller	C	6'3"	220	10/13/1969	33	La Crosse, WI