|Born: November 14, 1954|
Aguada, Puerto Rico
|April 9, 1977, for the Chicago Cubs|
|Last MLB appearance|
|August 18, 1989, for the Detroit Tigers|
|Earned run average||3.38|
|Career highlights and awards|
Guillermo "Willie" Hernández Villanueva (born November 14, 1954) is a former relief pitcher for the Chicago Cubs (1977–1983), Philadelphia Phillies (1983), and Detroit Tigers (1984–1989). He threw and batted left-handed. Hernández utilized the screwball.
In 1984, Hernandez became only the third player ever to win the Cy Young Award, the MVP Award, and the World Series title all in the same season (Sandy Koufax was the first to accomplish this feat, in 1963 and Denny McLain did it in 1968.)
Hernández signed with the Philadelphia Phillies as an amateur free agent in 1973. He was selected by the Chicago Cubs from the Phillies in the 1976 Rule 5 Draft. In his first two years in the majors (1977 and 1978), Hernandez went 16–9 with a 3.03 ERA in '77 and a 3.77 ERA in '78. The Cubs gave him a try as a starter in 1980, but he went 1–9 that year in 7 starts and 53 games pitched.
From 1979 to 1982, Hernández was 9–19 and gave up 128 earned runs in that time. After being traded to the Phillies for Bill Johnson and Dick Ruthven, he went 8–4 with 3.29 ERA and 7 saves. The Phillies made the World Series that year, losing to the Baltimore Orioles in 5 games.
Prior to the 1984 season, Hernández was traded to the Detroit Tigers with Dave Bergman for Glenn Wilson and John Wockenfuss. He had a 9–3 record, 32 saves and a 1.92 ERA in 140 innings pitched, while recording 112 strikeouts. In the entire season, Hernandez gave up only 6 home runs, 30 runs, 36 base on balls, and 96 hits. His 32 saves came in 33 opportunities.
Hernández won the 1984 American League Cy Young Award, beating out Dan Quisenberry. He also became one of the few relievers to ever win the Most Valuable Player Award (the others are Jim Konstanty, Rollie Fingers, and Dennis Eckersley), edging out Kent Hrbek. The Tigers finished 104–58 that season, and went on to sweep the Kansas City Royals in the American League Championship Series and defeat the San Diego Padres in the 1984 World Series, four games to one. Hernandez pitched five innings in the series, had two saves, and gave up only one run.
His overall postseason stats include a 2–2 record and a 1.32 ERA in 10 games, 13 2⁄3 innings pitched. He walked 2, and struck out 7.
Hernández never had those numbers again, but was a solid reliever for the Tigers in his final years - when he became known by his given name Guillermo Hernández. In 1988, his second-to-last year, he went 6–5 with a 3.06 ERA and 10 saves in 67 innings pitched. Hernández's last MLB game was on August 18, 1989, before being released by Detroit. He attempted comebacks with the Triple-A Syracuse Chiefs of the Toronto Blue Jays organization in 1991 and Columbus Clippers of the New York Yankees organization in 1995.
- Best pitching seasons by a Detroit Tiger
- 1984 Detroit Tigers season
- List of players from Puerto Rico in Major League Baseball
- List of Major League Baseball all-time saves leaders
- James, Bill; Neyer, Rob (2004-06-15). The Neyer/James Guide to Pitchers: An Historical Compendium of Pitching, Pitchers, and Pitches. Simon and Schuster. p. 52. ISBN 9780743261586. Retrieved 3 October 2012.