A fight in baseball usually caused by a pitcher hitting a batter with a pitch or buzzing/knocking him down with an inside pitch.
In Game 3 of the 2003 ALCS, the Yankees and Red Sox famously got into a basebrawl after Roger Clemens pitched way inside to Manny Ramirez, and Ramirez charged the mound. The fight ended with Don Zimmer's old ass being thrown to the ground by Pedro Martinez.
by Tex-Mex Shawn C. December 10, 2010