1.   Hakkinen was taken to the circuit for a routine check after suffering minor concussion when his car crashed into a barrier.

2.   Sometimes, a player who suffers a concussion is really out of it.

3.   When a football player suffers a concussion, the electrical circuitry in his brain undergoes a kind of temporary brown-out.

4.   She fell off a horse and suffered a concussion.

5.   Although his surgical knee was more of a concern to the Islanders when they drafted him, he had already suffered several concussions as a junior player.

6.   Also, cornerback Paul Guidry suffered a concussion and missed most of the game.

7.   And while LaFontaine says he has fully recovered from his last injury, he acknowledged that those who have suffered concussions are more vulnerable to them than others.

8.   Anderson is the second Bruins player to suffer a concussion this week.

9.   Applewhite suffered a concussion on the play.

10.   Axelsson suffered two concussions in a week earlier this season.