John Martin Pitts ( born February 28 , 1945 in Birmingham , Alabama ) was an American football defensive back in the NFL for the Buffalo Bills , Denver Broncos , and the Cleveland Browns .
John Martin Pitts ( born February 28 , 1945 in Birmingham , Alabama ) is a former American football defensive back . 
 He played in the American Football League for the Buffalo Bills and in the National Football League for the Buffalo Bills , the Denver Broncos , and the Cleveland Browns .