Brown was injured at the end of a 4-yard run less than five minutes into the game.
The boy was injured and received treatment at a hospital before going to the police.
"This is a lot of people being injured at one time."
Last year 346 people were killed and thousands injured each day at work.
In all, about 30 people were injured at the stadium.
Six more activists were injured at the hands of the police.
Agency workers can be injured or made ill at work.
Other parts of the knee can be injured at the same time.
Four other people were injured at the mobile home park.
Three people were killed and several others injured at each of those races.