Michael Strahan greets his gap-toothed bust in Canton

Improbable. That was the theme of Michael Strahan’s speech upon entry to the Pro Football Hall of Fame. “My life is improbable,” Strahan said.  “I’m an improbable Hall of Famer.  I’m an improbable football player.” It started when Strahan was an overweight teenager, and he decided to get in shape. “I went out and got…