[1] Born in San Pedro de Macorís, he threw and batted right-handed and was listed as 5 feet 10 inches (1.78 m) tall and 159 pounds (72 kg).

Frías signed originally with the San Francisco Giants in 1967, but an anemic bat hampered his progress in professional baseball.

[4] Frías spent six full seasons in Montreal as a backup infielder, peaking at 100 games played during his rookie campaign, and hitting .224 in 429 appearances.

Starting 69 games at shortstop and seven at third base, he batted .242 with 55 hits until he was traded to the Los Angeles Dodgers on September 13 for pitcher Dennis Lewallyn and cash.

In the majors, Pepe Frías collected 323 total hits, of which 58 went for extra bases: 49 doubles, one triple and his 1979 home run.