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.[1]
- ^ Official Baseball Rules (PDF) (2016 ed.). Office of the Commissioner of Baseball. 2016. Definitions of Terms - Interference (pp. 146-7). ISBN 978-0-9961140-2-8. Retrieved July 31, 2016.