1946 AAFC season
The season is significant for its shattering of the color line in the ranks of professional American football , when black athletes Marion Motley and Bill Willis took to the field for the AAFC's Cleveland Browns on September 9 , 1946 . 
<triplet> Marion Motley <subj> American football <obj> sport <subj> Cleveland Browns <obj> member of sports team <triplet> Bill Willis <subj> Cleveland Browns <obj> member of sports team <triplet> Cleveland Browns <subj> American football <obj> sport