Be the Referee: Field Hockey Substitutions

By Paige Winne
MHSAA Director of Brand Management

October 27, 2026

Be The Referee is a series of short messages designed to help educate people on the rules of different sports, to help them better understand the art of officiating, and to recruit officials.

Below is this week's segment – Field Hockey Substitutions - Listen

We’re on the pitch today for a field hockey “You Make the Call.”

The white team is awarded a penalty corner. During the penalty corner, a red team substitute enters the field but does not participate in or affect play.

Should the official stop play immediately or allow play to continue?

If you said allow play to continue, you are correct. Since the illegal substitute has not participated in or affected play, stopping play immediately would give the defending team an unfair advantage by interrupting the attacking team's scoring opportunity.

Under NFHS Rule 4-4-3, substitutions are not permitted during a penalty corner, except to replace an ill, injured, suspended or disqualified goalkeeper. Officials must recognize the violation and know when to hold the whistle to allow for advantage.

Previous 2026-27 editions

Oct. 20: Foot Save in Volleyball - Listen
Oct. 13: Soccer Advantage - Listen
Oct. 6: Defensive Holding - Listen
Sept. 29: Minimum Number of Volleyball Players - Listen
Sept 22: Soccer Changes - Listen
Sept: 15: Dead Ball Penalty - Listen
Sept. 8: Libero Ejected - Listen
Sept. 1: Soccer Foul After Shot on Goal - Listen
Aug. 25: Fumble Out of Bounds - Listen

(Photo by KMS Photography.)

Be the Referee: Blindside Blocks

August 24, 2017

This week, "Be the Referee" with MHSAA assistant director Mark Uyl returns with the first of a three-part series on football rules changes for 2017, this one on blindside blocking. 

Be The Referee is a series of short messages designed to help educate people on the rules of different sports, to help them better understand the art of officiating, and to recruit officials.

Below is this week's segment – Blindside Blocks - Listen


We're going to start the new school year with a three-part series on football rule changes.

There may be no hit in football that generates more "ohs" and “ahs" than the blindside hit. It's also one of the most dangerous hits in the game.

The defensive player in pursuit of the runner, who does not have a reasonable opportunity to see the oncoming blocker, is considered defenseless. In keeping with putting player safety first, national rules now allow blocking from the blindside only when contact is initiated with the hands – achieving the same effect without all the contact.

That big blindside hit will now result in a 15-yard penalty and possible ejection from the game.

Next week, we'll look at changes to rules covering onside kicks.