We've already learned about the umpires in baseball. They are responsible for making all calls in a baseball game as they pertain to the rulebook. But sometimes, they make a mistakes. As a player if you believe a call was incorrect, you can make an appeal to the head umpire.
- The offensive team bats out of order.
- A baserunner did not properly tag up after a fly ball was caught.
- A baserunner did not touch the bases in order, or missed a base while running.
- A baserunner did not immediately return to first base after overrunning.
An appeal must be made before the next pitch/play. Defensive teams can make appeals either verbally or by making an action that clearly shows they would like to appeal, usually by pointing at a location where a rule was broken.