Warren Sapp announced on The Players' Tribune on Tuesday that he will donate his brain to concussion research when he dies.
The manager of former WWE star Chyna, who died last week, said the wrestler's brain will be donated for CTE research to see "what made Chyna tick."
Dale Earnhardt Jr. talked about his decision Friday to donate his brain for science, saying he is willing to do "anything I can do to help others."
The NFL has demanded that the New York Times retract a story saying the league omitted concussion cases, according to a report.
Four Congress members have asked the NFL for information about why it attempted to intervene in the selection of a Boston University researcher to lead a study on football and brain disease.
Cardinals coach Bruce Arians says people who won't let their kids play football "are fools."
