"All literary men are Red Sox fans - to be a Yankee fan in a literate society is to endanger your life."

—John Cheever (via literaryflack)

Au contraire! Don DeLillo is a life-long Yankees fan, as is Paul Auster.

Proof: Here they are (several years ago) at a Yankees game with fellow fans from the Gotham Book Mart.

  (Source)

DeLillo has written:

”I remember one afternoon, in October, hearing a strange sound, a little like surf, and wondering what it was. And later I realized it was the sound made by the crowd at Yankee Stadium when Tommy Henrich hit a late-inning home run.” (NYT)