1987-12-21 | Phil Ouellette | Released by Giants. | C-1B | 6-0 | 190 | B | R | 1961-11-10 | Salem,OR | 1981- 0- 0-SFN
| MLB | 1986-1986 | 1981-1990 |
1987-12-14 | Joe Price | Signed as Free Agent by Giants. | P | 6-4 | 210 | R | L | 1956-11-29 | Inglewood,CA | 1977- 4- 102-CIN
| MLB | 1980-1990 | 1977-1991 |
1987-12-09 | Randy Kutcher | Traded by Giants to Red Sox for Dave Henderson. | OF-SS | 5-11 | 175 | R | R | 1960-04-20 | Anchorage,AK | 1979- 4- 96-SFN
| MLB | 1986-1990 | 1979-1991 |
1987-12-01 | Brett Butler | Signed as Free Agent by Giants. | OF-CF | 5-10 | 160 | L | L | 1957-06-15 | Los Angeles,CA | 1979- 23- 573-ATL
| MLB | 1981-1997 | 1979-1997 |
1987-12-01 | Joel Youngblood | Signed as Free Agent by Giants. | OF-3B | 6-0 | 180 | R | R | 1951-08-28 | Houston,TX | 1970- 2- 40-CIN
| MLB | 1976-1989 | 1970-1989 |
1987-11-24 | Mike LaCoss | Signed as Free Agent by Giants. | P | 6-4 | 200 | R | R | 1956-05-30 | Glendale,CA | 1974- 3- 71-CIN
| MLB | 1978-1991 | 1974-1992 |
1987-09-01 | Dave Henderson | Traded by Red Sox to Giants for Randy Kutcher. | OF-DH | 6-2 | 220 | R | R | 1958-07-21 | Merced,CA | 1977- 1- 26-SEA
| MLB | 1981-1994 | 1977-1994 |
1987-08-22 | Kevin Hickey | Signed as Free Agent by Giants. | P | 6-1 | 200 | L | L | 1956-02-25 | Chicago,IL | 1977- 0- 0-CHA
| MLB | 1981-1991 | 1978-1991 |
1987-08-21 | Scott Medvin | Traded by Giants with Jeff Robinson to Pirates for Rick Reuschel. | P | 6-1 | 195 | R | R | 1961-09-16 | North Olmsted,OH | 1983- 0- 0-DET
| MLB | 1988-1990 | 1984-1990 |
1987-08-21 | Jeff Robinson | Traded by Giants with Scott Medvin to Pirates for Rick Reuschel. | P-OF | 6-4 | 200 | R | R | 1960-12-13 | Santa Ana,CA | 1983- 2- 44-SFN
| MLB | 1984-1992 | 1983-1993 |
1987-08-21 | Rick Reuschel | Traded by Pirates to Giants for Scott Medvin and Jeff Robinson. | P | 6-3 | 235 | R | R | 1949-05-16 | Quincy,IL | 1970- 3- 67-CHN
| MLB | 1972-1991 | 1970-1991 |
1987-08-03 | Jim Gott | Claimed on waivers by Pirates from Giants. | P | 6-4 | 220 | R | R | 1959-08-03 | Hollywood,CA | 1977- 4- 84-SLN
| MLB | 1982-1995 | 1977-1995 |
1987-07-31 | Mackey Sasser | Traded by Giants with Cash to Pirates for Don Robinson. | C-1B | 6-1 | 210 | L | R | 1962-08-03 | Fort Gaines,GA | 1984- 5- 114-SFN
| MLB | 1987-1995 | 1984-1995 |
1987-07-31 | Don Robinson | Traded by Pirates to Giants for Mackey Sasser and Cash. | P-OF | 6-4 | 231 | R | R | 1957-06-08 | Ashland,KY | 1977- 17- 430-HOU
| MLB | 1978-1992 | 1975-1992 |
1987-07-17 | Ivan DeJesus | Released by Giants. | SS-3B | 5-11 | 175 | R | R | 1953-01-09 | Santurce,PR | 1969- 0- 0-LAN
| MLB | 1974-1988 | 1970-1989 |
1987-07-11 | Dave Kingman | Signed as Free Agent by Giants. | OF-1B | 6-6 | 210 | R | R | 1948-12-21 | Pendleton,OR | 1970- 1- 1-SFN
| MLB | 1971-1986 | 1970-1987 |
1987-07-05 | Chris Brown | Traded by Giants with Mark Grant, mark davis and Keith Comstock to Padres for Kevin Mitchell, Craig Lefferts and Dave Dravecky. | 3B-1B | 6-0 | 185 | R | R | 1961-08-15 | Jackson,MS | 1979- 2- 44-SFN
| MLB | 1984-1989 | 1979-1995 |
1987-07-05 | Keith Comstock | Traded by Giants with Mark Grant, mark davis and Chris Brown to Padres for Kevin Mitchell, Craig Lefferts and Dave Dravecky. | P-OF | 6-0 | 175 | L | L | 1955-12-23 | San Francisco,CA | 1976- 5- 93-CAL
| MLB | 1984-1991 | 1976-1991 |
1987-07-05 | Mark Davis | Traded by Giants with Mark Grant, Keith Comstock and Chris Brown to Padres for Kevin Mitchell, Craig Lefferts and Dave Dravecky. | P | 6-4 | 210 | L | L | 1960-10-19 | Marietta,GA | 1979- 1- 1-PHI
| MLB | 1980-1997 | 1979-1997 |
1987-07-05 | Mark Grant | Traded by Giants with mark davis, Keith Comstock and Chris Brown to Padres for Kevin Mitchell, Craig Lefferts and Dave Dravecky. | P | 6-2 | 215 | R | R | 1963-10-24 | Aurora,IL | 1981- 1- 10-SFN
| MLB | 1984-1993 | 1981-1995 |
1987-07-05 | Kevin Mitchell | Traded by Padres with Craig Lefferts and Dave Dravecky to Giants for Mark Grant, mark davis, Keith Comstock and Chris Brown. | OF-3B | 5-11 | 244 | R | R | 1962-01-13 | San Diego,CA | 1980- 0- 0-NYN
| MLB | 1984-1998 | 1981-1998 |
1987-07-05 | Dave Dravecky | Traded by Padres with Kevin Mitchell and Craig Lefferts to Giants for Mark Grant, mark davis, Keith Comstock and Chris Brown. | P | 6-1 | 195 | R | L | 1956-02-14 | Youngstown,OH | 1978- 21- 531-PIT
| MLB | 1982-1989 | 1978-1989 |
1987-07-05 | Craig Lefferts | Traded by Padres with Kevin Mitchell and Dave Dravecky to Giants for Mark Grant, mark davis, Keith Comstock and Chris Brown. | P | 6-1 | 210 | L | L | 1957-09-29 | Munich,GE | 1980- 9- 219-CHN
| MLB | 1983-1994 | 1980-1994 |
1987-06-29 | Mike Woodard | Released by Giants. | 2B-3B | 5-9 | 155 | L | R | 1960-03-02 | Melrose Park,IL | 1978- 4- 82-OAK
| MLB | 1985-1988 | 1978-1989 |
1987-06-15 | Bryan Hickerson | Traded by Twins with Ray Velasquez and Jose Dominguez to Giants for David Blakely and Dan Gladden. | P | 6-2 | 203 | L | L | 1963-10-13 | Bemidji,MN | 1986- 7- 169-MIN
| MLB | 1991-1995 | 1986-1995 |
1987-06-05 | Ivan DeJesus | Purchased by Giants from Cardinals. | SS-3B | 5-11 | 175 | R | R | 1953-01-09 | Santurce,PR | 1969- 0- 0-LAN
| MLB | 1974-1988 | 1970-1989 |
1987-06-04 | Rod Scurry | Signed as Free Agent by Giants. | P | 6-2 | 180 | L | L | 1956-03-17 | Sacramento,CA | 1974- 1- 11-PIT
| MLB | 1980-1988 | 1974-1988 |
1987-05-28 | Greg Minton | Released by Giants. | P | 6-2 | 190 | B | R | 1951-07-29 | Lubbock,TX | 1970- 3- 55-KCA
| MLB | 1975-1990 | 1970-1990 |
1987-05-13 | Rob Wilfong | Released by Giants. | 2B-3B | 6-1 | 185 | L | R | 1953-09-01 | Pasadena,CA | 1971- 13- 316-MIN
| MLB | 1977-1987 | 1972-1987 |
1987-05-05 | Rob Wilfong | Signed as Free Agent by Giants. | 2B-3B | 6-1 | 185 | L | R | 1953-09-01 | Pasadena,CA | 1971- 13- 316-MIN
| MLB | 1977-1987 | 1972-1987 |
1987-04-26 | Rusty Tillman | Signed as Free Agent by Giants. | OF-1B | 6-0 | 185 | R | R | 1960-08-29 | Jacksonville,FL | 1979- 10- 201-NYN
| MLB | 1982-1988 | 1979-1989 |
1987-04-25 | Colin Ward | Traded by Giants with Steve Miller to Padres for Mark Wasinger and Tim Meagher. | P | 6-3 | 190 | L | L | 1960-11-22 | Los Angeles,CA | 1982- 3- 74-DET
| MLB | 1985-1985 | 1982-1988 |
1987-04-25 | Mark Wasinger | Traded by Padres with Tim Meagher to Giants for Steve Miller and Colin Ward. | 2B-3B | 6-0 | 165 | R | R | 1961-08-04 | Monterey,CA | 1982- 3- 57-SDN
| MLB | 1986-1988 | 1982-1997 |
1987-04-21 | Dave Schuler | Purchased by Giants from Brewers. | P | 6-4 | 210 | R | L | 1953-10-04 | Framingham,MA | 1975- 10- 223-CLE
| MLB | 1979-1985 | 1976-1987 |
1987-04-19 | Jim Adduci | Purchased by Giants from Brewers. | OF-1B | 6-5 | 200 | L | L | 1959-08-09 | Chicago,IL | 1980- 7- 171-SLN
| MLB | 1983-1989 | 1980-1990 |
1987-04-07 | Jim Gott | Signed as Free Agent by Giants. | P | 6-4 | 220 | R | R | 1959-08-03 | Hollywood,CA | 1977- 4- 84-SLN
| MLB | 1982-1995 | 1977-1995 |
1987-03-31 | Dan Gladden | Traded by Giants with David Blakely to Twins for Bryan Hickerson, Ray Velasquez and Jose Dominguez. | OF-DH | 5-11 | 180 | R | R | 1957-07-07 | San Jose,CA | 1979- 0- 0-SFN
| MLB | 1983-1993 | 1979-1993 |
1987-03-22 | Francisco Melendez | Purchased by Giants from Phillies. | 1B-OF | 6-0 | 190 | L | L | 1964-01-25 | Rio Piedras,PR | 1980- 0- 0-PHI
| MLB | 1984-1989 | 1981-1990 |
1987-03-18 | Ray Fontenot | Released by Giants. | P | 6-0 | 175 | L | L | 1957-08-08 | Lake Charles,LA | 1979- 34- 815-TEX
| MLB | 1983-1986 | 1979-1987 |
1987-02-19 | Ray Fontenot | Signed as Free Agent by Giants. | P | 6-0 | 175 | L | L | 1957-08-08 | Lake Charles,LA | 1979- 34- 815-TEX
| MLB | 1983-1986 | 1979-1987 |
1987-02-06 | Roger Samuels | Signed as Free Agent by Giants. | P | 6-5 | 210 | L | L | 1961-01-05 | San Jose,CA | 1983- 10- 244-HOU
| MLB | 1988-1989 | 1983-1990 |
1987-02-05 | Joe Price | Signed as Free Agent by Giants. | P | 6-4 | 210 | R | L | 1956-11-29 | Inglewood,CA | 1977- 4- 102-CIN
| MLB | 1980-1990 | 1977-1991 |
1987-02-04 | Atlee Hammaker | Signed as Free Agent by Giants. | P | 6-2 | 200 | B | L | 1958-01-24 | Carmel,CA | 1979- 1- 21-KCA
| MLB | 1981-1995 | 1979-1995 |
1987-01-08 | Frank Williams | Traded by Giants with Mike Villa and Timber Mead to Reds for Eddie Milner. | P | 6-1 | 195 | R | R | 1958-02-13 | Seattle,WA | 1979- 11- 278-SFN
| MLB | 1984-1989 | 1979-1989 |
1987-01-08 | Eddie Milner | Traded by Reds to Giants for Mike Villa, Timber Mead and Frank Williams. | OF | 5-11 | 173 | L | L | 1955-05-21 | Columbus,OH | 1976- 21- 503-CIN
| MLB | 1980-1988 | 1976-1988 |