White Sox vs. Cubs Crosstown Classic rivalry always packs a punch - Chicago Sun-Times
Top White Sox-Cubs Crosstown Moments, by Chicago White Sox
May 20, 2006: The Michael Barrett-A.J. Pierzynski fight
Jorge Soler's pinch-hit blast leads Marlins past Giants – Sun Sentinel
May 20, 2006: The Michael Barrett-A.J. Pierzynski fight - Los Angeles Times
Oneonta Baseball Sweeps Weekend Series Against Fredonia - SUNY Oneonta Athletics
Baseball In Pics - Michael Barrett delivers a punch to AJ Pierzynski after being run over at the plate, 2006
Twins 4, Tigers 1: Rough second inning dooms Detroit, Wentz - Bless You Boys
A.J. Pierzynski barrels Michael Barrett then gets punched in the face, a breakdown, Good old baseball, By Jomboy Media
Remembering past base-brawls
Ten years later, A.J. Pierzynski recalls Michael Barrett encounter in Crosstown Classic – NBC Sports Chicago
Astros, A's clear benches, empty seats; Oak wins 9th in row
Major League Baseball suspends eight for Dodgers-Diamondbacks brawl – Twin Cities
Playoff-bound Twins hit 3 homers in 7-6 victory over Rockies - The San Diego Union-Tribune
Four Baseball Players Earn First Team All-Conference - Westchester Community College Athletics