Deletion of Brown–Yale football rivalry

Comment: Sources linked in the article don't describe this in terms that would meet : https://www.nhregister.com/colleges/article/Brown-at-Yale-football-Five-things-to-know-12327636.php and https://books.google.com.au/books?redir_esc=y&id=0XuqzuUHOIMC&q=brown#v=snippet&q=brown&f=false (unless it's on a page I don't have a preview for?) don't mention a rivalry at all, and while https://news.google.com/newspapers?nid=2229&dat=19560930&id=cOEyAAAAIBAJ&sjid=ewAGAAAAIBAJ&pg=4664,6327407&hl=en calls it a "rivalry" I don't think it's in the proper context (just a headline, and also calls Columbia a "rival
Stance: delete
Cited policy: Wikipedia:Notability (WP:NRIVALRY)