One solution the NFL has explored to make the game safer is increasing the length and width of the playing field.
Per The Athletic's Jay Glazer, the topic was discussed at the NFL owners meetings in March.
"It was brought up, the players have gotten bigger, faster, stronger, and the field hasn't gotten any bigger," Glazer wrote. "I don't see anything changing, but this is the first year I actually heard about that. ... That was the first time I'd ever heard about that."
This article will be updated to provide more information on this story as it becomes available.