He insisted on donating his brain,” said Deborah Hull, Bobby Hull’s wife of almost 40 years, “feeling as though it was his duty to help advance research on this agonizing disease.”

Stanley Cup champion and Hockey Fall of Fame forward Bobby Hull had CTE when he died at 84 in 2023, his widow said in a statement. Researchers at Boston University's CTE Center found that Hull suffered from Stage 2 CTE at the time of his death.