Be the Referee: Concussions

September 15, 2016

This week, MHSAA assistant director Mark Uyl discusses the official's role when an athlete experiences a possible concussion. 

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  Concussions - Listen

In all contact sports, the biggest issue of the day continues to be concussions. Game officials play a vital role in keeping athletes safe on the field, court, ice and mat.

While officials are never placed in the position to diagnose a possible concussion, the officials can often see when a player first becomes injured. When that possible injury is noticed by an official, all game rules require the contest be stopped and the student is evaluated by the school’s health care team.

It then becomes the call of the school to determine if the player has suffered a possible concussion. If yes, the player is out for at least the rest of that day. If no, the player can return to the contest.

Past editions
Sept 8: Equipment Covering the Knees - Listen
Sept. 1: Play Clock Experiment - Listen
Aug. 25: Clipping in the Free Blocking Zone - Listen

Be the Referee: Illegal Substitution/Participation

By Paige Winne
MHSAA Marketing & Social Media Coordinator

November 11, 2025

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 – Illegal Substitution/Participation - Listen

We’re on the football field this week with 23 players.

Twenty-three is one too many; there should only be 22 on the field at once – 11 on offense, 11 on defense.

But on this play, the offense had a 12th player lined up on the field.

What’s the call?

It depends on when the penalty is spotted.

If the officials catch it before the play is run, that’s an illegal substitution and a 5-yard penalty.

But if the ball is snapped and a play is run with 12 on the field – and the 12th player is not attempting to get off the field – then it’s illegal participation and a 15-yard penalty. It’s also a 15-yard penalty if the offense uses a substitution to create a deception.

Previous 2025-26 editions

Nov. 4: Losing a Shoe - Listen
Oct. 28: Unusual Soccer Goals - Listen
Oct. 21: Field Hockey Penalty Stroke - Listen
Oct. 14: Tennis Double Hit - Listen
Oct. 7: Safety in Football - Listen
Sept. 30: Field Hockey Substitution - Listen
Sept 23: Multiple Contacts in Volleyball - Listen
Sept. 16: Soccer Penalty Kick - Listen
Sept. 9: Forward Fumble - Listen
Sept. 2: Field Hockey Basics - Listen
Aug. 26: Golf Ball Bounces Out - Listen