Juan Bautista Berenguer [beh-ren-gher'] (born November 30, 1954) is a Panamanian former long relief pitcher in Major League Baseball (MLB) who played for eight teams from 1978 to 1992.

[1][2] A mean-looking, husky pitcher with long hair and a mustache, Berenguer was nicknamed 'Pancho Villa' by his teammates, and Twins fans admiringly referred to him as 'Señor Smoke' or 'El Gasolino' due to his mid-90s mph fastball.

[1] Extremely wild as a youngster, Berenguer learned to harness his sneaky fastball which he liked to throw inside, and added a deceptive forkball.

By April 1981, Berenguer had a 1–4 win–loss record and a 4.75 earned run average (ERA) in 16 career appearances with the team, and he was still having problems controlling his fastball, so the Mets traded him to the Kansas City Royals in exchange for outfielder Marvell Wynne and pitcher John Skinner.

[2] His breakout season came in 1987, when he posted an 8–1 record with a 3.94 ERA and four saves for the American League champion Twins, en route to the 1987 World Championship over the St. Louis Cardinals.