Christopher Louis Bosio (born April 3, 1963) is an American former professional baseball pitcher and pitching coach. He played in Major League Baseball (MLB) for the Milwaukee Brewers and Seattle Mariners from 1986 to 1996. He was listed at and , and both threw and batted right-handed. Bosio has served as a pitching coach in MLB for the Brewers, Tampa Bay Devil Rays, Chicago Cubs, and Detroit Tigers. Playing career Bosio attended Cordova High School in Rancho Cordova, California, and Sacramento City College. He was first drafted by the Pittsburgh Pirates in the 29th round of the 1981 MLB draft, but he did not sign. The Milwaukee Brewers subsequently selected him in the second round of the 1982 MLB draft's secondary phase, held in January; he signed with the Brewers in June 1982. Milwaukee Brewers Bosio played in Milwaukee's farm system for the 1982 through 1985 seasons, and partially during 1986, the year of his MLB debut. After playing for Rookie League and Class A Beloit Brewers teams through 1984, Bosio spent 1985 with the Double-A El Paso Diablos, compiling an 11–6 record in 28 games (25 starts). In 1986, he spent most of the season with the Triple-A Vancouver Canadians, appearing in 44 games (all in relief); he had a 7–3 record with a 2.28 ERA in 67 innings pitched. Bosio made his MLB debut on August 3, 1986, against the Texas Rangers. He pitched three innings in relief, giving up three hits and one run, with one strikeout, Pete Incaviglia. He made a total of 10 appearances (four starts) with the 1986 Brewers, with a 7.01 ERA and an 0–4 record. In 1987, Bosio had an 11–8 record with 5.24 ERA in 46 appearances (19 starts). His record fell to 7–15 in 1988, when he made 38 appearances (22 starts) with a 3.36 ERA. In 1989, his record improved to 15–10, when he appeared in 33 games (all starts) and had a 2.95 ERA. In 1990, Bosio's 20 appearances were all starts; he pitched to a 4–9 record with a 4.00 ERA. In 1991, his record improved to 14–10 with a 3.25 ERA, in 32 games played (all starts). His record further improved to 16–6 in 1992, with a 3.62 ERA in 33 appearances (all starts). In seven seasons with the Brewers, Bosio appeared in 212 games (163 starts) with an overall record of 67–62, 749 strikeouts, 289