 Ryan, Pedro Martínez, Randy Johnson, Trevor Hoffman, and Sandy Koufax are the only five pitchers inducted into the Baseball Hall of Fame who had more strikeouts than innings pitched.Ryan is one of only three players in history to have his number retired by at least three teams, along with Jackie Robinson (whose number was retired by Major League Baseball) and Frank Robinson.Ryan is the all-time leader in no-hitters with seven, three more than any other pitcher.