Line judge
Umpire can refer to the following:
- Line judge (tennis), an official in tennis to observe the passage of tennis balls over the boundary lines of the court
- Electronic line judge, an electronic system used in tennis to automatically detect where a ball has landed on the court
- Line judge (gridiron football), an official in gridiron football responsible for the line of scrimmage and sideline fouls
This disambiguation page lists articles associated with the title Line judge.
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