|Born||Gregory Louis Bonin
June 15, 1955
|Years active||1984-1999 (NL) 2000-2001 (MLB)|
|Employer||National League, Major League Baseball|
Gregory Louis Bonin (born June 15, 1955) is a former professional baseball umpire. Bonin worked in the National League from 1984 to 1999, and in both major leagues in 2000 and 2001, wearing uniform number 34 for his entire career. He umpired in 1,746 major league games in his 18 year career. He umpired in one All-Star Game (1991), one National League Championship Series (1998), and two Division Series, 1996 and 1997.
Health problems 
In a 2008 interview for USA Today, Bonin discussed ongoing health effects and memory problems that had plagued him since head injuries had ended his umpiring career. Bonin took three blows to the head over his last three seasons; the first two caused Bonin to miss significant time on the field and the third led to his retirement in 2001.
See also 
- White, Paul (June 19, 2008). "Home-plate umpires find themselves in the line of fire". USA Today. Retrieved June 23, 2012.
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