By now, we all know that football is an inherently dangerous sport, but that doesn’t mean that the extent to which former players show signs of brain damage isn’t still shocking.

According to a recent Washington Post report, researchers from the Boston University School of Medicine and the VA Boston Healthcare System studied 111 brains of former NFL players and found that a whopping 110 of them had CTE.

In fact, the report states, an athlete doesn’t need to be an ex-NFL player to have CTE, as 48 of the 53 players who played at the college level, but not professionally, also had CTE:

“To me, it’s very concerning that we have college-level players who have severe CTE who did not go on to play professionally,” McKee said. “That means they most likely retired before the age of 25 and we still are seeing in some of those individuals very severe repercussions.”

The report clarifies that most of the brains they study are from families concerned that an ex-football player had brain damage, so they are inherently more likely to discover CTE in those brains.

Still, no matter how you slice it, it’s clear the game of football has damaged many people over the years.

Hopefully, the percentage of former players with CTE will decline as more generations of athletes play the game.