Fantasy Football Week 3 Start ‘Em & Sit ‘Em: Jordan Mason in a dream spot, plus sleepers at every position

SOUTHAMPTON, New York — Wyndham Clark's most formidable foe in the final round of the U.S. Open might not be the demanding Shinnecock course or even his playing partner (world No. 1 Scottie Scheffler), but rather himself. That's the case when you build a six-shot lead going into Sunday (9 a.m.-12 p.m. ET on USA…