Bob Probert suffered brain trauma from physical ice hockey play
Tough Guy: My Life on the Edge: 9781600785627: Probert, Bob, McLellan Day, Kirstie, Probert, Dani, Yzerman, Steve: Books
Who are the NHL's all-time best fighters/enforcers? - Quora
Ex-Red Wings, Blackhawks tough guy Bob Probert dies at 45
What are the most spectacular goals in the history of the NHL? - Quora
Role of enforcer in NHL shrinks - Newsday
Column: Boogaard a sad example for hockey goons - The San Diego Union-Tribune
List of Detroit Red Wings draft picks - Wikipedia
Hockey Book Reviews.com: November 2010