Christopher Louis Bosio (born April 3, 1963) is a former Major League Baseball pitcher, who played for the Milwaukee Brewers and Seattle Mariners from 1986 to 1996 and is currently major league pitching coach for the Chicago Cubs. He attended Cordova High School and Sacramento City College.Bosio was the second pitcher in Mariners' history to pitch a no-hitter on April 22, 1993, against the Boston Red Sox.