Jacoby McCabe Ellsbury is an American former professional baseball center fielder. He played in Major League Baseball (MLB) for the Boston Red Sox from 2007 through 2013 and then played for the New York Yankees from 2014 to 2017. An enrolled member of the Colorado River Indian Tribes, Ellsbury is the first Native American of Navajo descent to play Major League Baseball.

In baseball, interference occurs in situations in which a person illegally changes the course of play from what is expected. Interference might be committed by players on the offense, players not currently in the game, catchers, umpires, or spectators. Each type of interference is covered differently by the rules.