In a game marked by a fight between Mickey McDermott and Jackie Jensen, the Senators top the Red Sox, 1 – 0, in 12 innings. In the 12th, Jensen is trapped off first base but his way back to the bag is obstructed by first baseman Mickey Vernon; it is called by second base umpire Ed Runge, but he makes no gestures and Jensen continues back to first. McDermott, waiting to put the tag on, is knocked over by Jensen, and Hank Soar calls the runner out. Soar is overruled and then the fight starts between Jensen and the pitcher and both are tossed. Pedro Ramos, who succeeds McDermott, draws a walk and scores the winning run.

On May 21, 1955 — In a game marked by a fight between Mickey McDermott and Jackie Jensen, the Senators top the Red Sox, 1 – 0, in 12 innings. In the 12th, Jensen is trapped off first base but his way back to the bag is obstructed by first baseman Mickey Vernon; it is called by second base umpire Ed Runge, but he makes no gestures and Jensen continues back to first. McDermott, waiting to put the tag on, is knocked over by Jensen, and Hank Soar calls the runner out. Soar is overruled and then the fight starts between Jensen and the pitcher and both are tossed. Pedro Ramos, who succeeds McDermott, draws a walk and scores the winning run.

Source:
Baseball Reference May 21