The 1990 roster for the Athletics included Dave Stewart at pitcher, Terry Steinbach at catcher, Mark McGwire at first baseman, Mike Gallego at second baseman and Carney Lansford at third baseman.

	NAME	POS	HEIGHT	WEIGHT	DOB	AGE	BIRTHPLACE
1	Troy Afenir T. Afenir	C	6'4"	185	9/21/1963	26	Escondido, CA
2	Harold Baines H. Baines	DH	6'2"	215	3/15/1959	31	Easton, MD
3	Joe Bitker J. Bitker	P	6'1"	175	2/12/1964	26	Glendale, CA
4	Lance Blankenship L. Blankenship	3B	6'0"	185	12/6/1963	26	Portland, OR
5	Mike Bordick M. Bordick	3B	5'11"	175	7/21/1965	24	Marquette, MI
6	Todd Burns T. Burns	P	6'2"	190	7/6/1963	26	Maywood, CA
7	Jose Canseco J. Canseco	OF	6'4"	240	7/2/1964	25	Havana, Cuba
8	Ozzie Canseco O. Canseco	DH	6'2"	220	7/2/1964	25	Havana, Cuba
9	Steve Chitren S. Chitren	P	6'0"	180	6/8/1967	23	Tokyo, Japan
10	Dennis Eckersley D. Eckersley	P	6'2"	190	10/3/1954	35	Oakland, CA
11	Mike Gallego M. Gallego	2B	5'8"	160	10/31/1960	29	Whittier, CA
12	Reggie Harris R. Harris	P	6'1"	180	8/12/1968	21	Waynesboro, VA
13	Ron Hassey R. Hassey	C	6'2"	200	2/27/1953	37	Tucson, AZ
14	Scott Hemond S. Hemond	3B	6'0"	205	11/18/1965	24	Taunton, MA
15	Dave Henderson D. Henderson	OF	6'2"	220	7/21/1958	31	Merced, CA
16	Rickey Henderson R. Henderson	OF	5'10"	190	12/25/1958	31	Chicago, IL
17	Rick Honeycutt R. Honeycutt	P	6'0"	190	6/29/1954	36	Chattanooga, TN
18	Steve Howard S. Howard	OF	6'2"	205	12/7/1963	26	Oakland, CA
19	Dann Howitt D. Howitt	OF	6'5"	205	2/13/1964	26	Battle Creek, MI
20	Stan Javier S. Javier	OF	6'0"	185	1/9/1964	26	San Francisco de Macoris, Dominican Republic
21	Doug Jennings D. Jennings	OF	5'10"	170	9/30/1964	25	Atlanta, GA
22	Felix Jose F. Jose	OF	6'1"	200	5/2/1965	25	Santo Domingo, Dominican Republic
23	Joe Klink J. Klink	P	5'11"	175	2/3/1962	28	Johnstown, PA
24	Carney Lansford C. Lansford	3B	6'2"	195	2/7/1957	33	San Jose, CA
25	Darren Lewis D. Lewis	OF	6'0"	200	8/28/1967	22	Berkeley, CA