“After examining Bob Probert’s brain tissue, researchers said they found … the first contemporary hockey player to show C.T.E. after death. 1″

“NFL players suffered more concussions in 2017 than in each of the previous five years, according to data released by the league. There were 281 reported concussions that season, including head injuries suffered in preseason games and practices. That is the highest number in the past six years and an increase of 15.6% over the five-year average.2”

1-CNN 2-USA Today

1NY Times