Big Unit's future hanging in the balance
Arizona Diamondbacks Greatest Moments: #4 Randy Johnson Strikes Out His 20th Batter - AZ Snake Pit
Randy Johnson Through The Years - Sports Illustrated
Randy Johnson's 27 Outs from Historic Perfect Game
Randy Johnson's 27 Outs from Historic Perfect Game
May 18, 2004: Randy Johnson pitches a perfect game at age 40 – Society for American Baseball Research
Perfection: A look back at the glorious history of MLB's perfect games
Blue Jays' Robbie Ray Pushed Toward Greatness by Randy Johnson - The New York Times
A lookback at Randy Johnson's perfect game