Significant? I'm not enough of a baseball historian to know. But I did find this photo in the Detroit Free Press from this supposedly well known 1912 incident:
Another major controversy in Cobb's career occurred in 1912, and this led to the first players' strike. During a game in New York on May 15 of that year, Cobb was subjected to vicious and unrelenting heckling from the fans, especially a disabled man named Claude Lueker, who for several years had made sport of heckling Cobb whenever the Tigers visited Hilltop Park. Finally, unable to stand the abuse and urged on by his teammates, Cobb went into the stands and attacked Lueker, who had lost one hand and most of the other in a printing press accident. When he was informed of the incident, Ban Johnson suspended Cobb indefinitely. Despite their dislike for Cobb, his teammates were outraged, and announced that they would not play again until Cobb was reinstated. After a one-game farce in which the Tigers fielded a team of semipro players, the matter was resolved when Cobb's suspension was reduced to ten days.
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