The 1991 roster for the Pirates included Doug Drabek at pitcher, Michael LaValliere at catcher, Orlando Merced at first baseman, Jose Lind at second baseman and Steve Buechele at third baseman.

	NAME	POS	HEIGHT	WEIGHT	DOB	AGE	BIRTHPLACE
1	Jeff Banister J. Banister	PH	6'2"	200	1/15/1964	27	Weatherford, OK
2	Stan Belinda S. Belinda	P	6'3"	185	8/6/1966	24	Huntingdon, PA
3	Jay Bell J. Bell	SS	6'0"	185	12/11/1965	25	Pensacola, FL
4	Barry Bonds B. Bonds	OF	6'2"	240	7/24/1964	26	Riverside, CA
5	Bobby Bonilla B. Bonilla	OF	6'3"	240	2/23/1963	28	Bronx, NY
6	Steve Buechele S. Buechele	3B	6'2"	190	9/26/1961	29	Lancaster, CA
7	Scott Bullett S. Bullett	OF	6'3"	220	12/25/1968	22	Martinsburg, WV
8	Doug Drabek D. Drabek	P	6'1"	185	7/25/1962	28	Victoria, TX
9	Cecil Espy C. Espy	OF	6'3"	195	1/20/1963	28	San Diego, CA
10	Hector Fajardo H. Fajardo	P	6'4"	185	11/16/1970	20	Sahuayo, Mexico
11	Carlos Garcia C. Garcia	SS	6'1"	185	10/15/1967	23	Tachira, Venezuela
12	Jose Gonzalez J. Gonzalez	OF	6'2"	195	11/23/1964	26	Puerto Plata, Dominican Republic
13	Neal Heaton N. Heaton	P	6'1"	205	3/3/1960	31	South Ozone Park, NY
14	Mark Huismann M. Huismann	P	6'3"	195	5/11/1958	33	Lincoln, NE
15	Jeff King J. King	3B	6'1"	180	12/26/1964	26	Marion, IN
16	Bob Kipper B. Kipper	P	6'2"	200	7/8/1964	26	Aurora, IL
17	Michael LaValliere M. LaValliere	C	5'9"	190	8/18/1960	30	Charlotte, NC
18	Bill Landrum B. Landrum	P	6'2"	200	8/17/1957	33	Columbia, SC
19	Jose Lind J. Lind	2B	5'11"	175	5/1/1964	27	Toa Baja, Puerto Rico
20	Carmelo Martinez C. Martinez	1B	6'2"	220	7/28/1960	30	Dorado, Puerto Rico
21	Roger Mason R. Mason	P	6'6"	220	9/18/1957	33	Bellaire, MI
22	Lloyd McClendon L. McClendon	OF	5'11"	195	1/11/1959	32	Gary, IN
23	Orlando Merced O. Merced	1B	6'1"	195	11/2/1966	24	San Juan, Puerto Rico
24	Paul Miller P. Miller	P	6'5"	215	4/27/1965	26	Burlington, WI
25	Vicente Palacios V. Palacios	P	6'3"	195	7/19/1963	27	Manlio Fabio Altamirano, Mexico