Luis DeLeon debuted on September 6, 1981, playing for the St. Louis Cardinals at Busch Stadium II; he played his final game on May 26, 1989, playing for the Seattle Mariners at Kingdome.
Luis DeLeon played in 63 games at pitcher for the San Diego Padres in 1983, starting in none of them. He played for a total of 333 outs, equivalent to 12.33 9-inning games. He made 2 putouts, had 9 assists, and committed one error, equivalent to .081 errors per 9-inning game. He had one double play.
Luis DeLeon played in 32 games at pitcher for the San Diego Padres in 1984, starting in none of them. He played for a total of 128 outs, equivalent to 4.74 9-inning games. He made 4 putouts, had 4 assists, and committed one error, equivalent to .211 errors per 9-inning game. He had one double play.
Luis DeLeon played in 61 games at pitcher for the San Diego Padres in 1982, starting in none of them. He played for a total of 306 outs, equivalent to 11.33 9-inning games. He made 13 putouts, had 18 assists, and committed 3 errors, equivalent to .265 errors per 9-inning game. He had one double play.
Luis Aguayo debuted on April 19, 1980 and played his final game on September 30, 1989.
Luis Alcaraz debuted on September 13, 1967 and played his final game on June 7, 1970.
Luis Alicea debuted on April 23, 1988 and played his final game on September 25, 2002.
Luis Aloma debuted on April 19, 1950 and played his final game on August 30, 1953.
Luis Alvarado debuted on September 13, 1968 and played his final game on April 30, 1977.
Luis Andujar debuted on September 8, 1995 and played his final game on June 28, 1998.
Luis Aparicio debuted on April 17, 1956 and played his final game on September 28, 1973.
Luis Aponte debuted on September 4, 1980 and played his final game on July 6, 1984.
Luis Aquino debuted on August 8, 1986 and played his final game on September 12, 1995.