Several college football players yesterday showed support for the National Collegiate Players Association, writing the initials of the group’s slogan—”All Players United”—on parts of their uniform. It’s a show of solidarity with those suing over the use of player likenesses in the NCAA Football series.
https://deadspin.com/how-a-group-of-active-players-are-protesting-the-ncaa-t-1363409428