Jackson, Sindelar top leaderboard at Senior Open (AP)
Tennessee amateur Tim Jackson left Greg Norman and Joey Sindelar behind Friday in the U.S. Senior Open. The 50-year-old Jackson real estate developer shot a 5-under 67 at Crooked Stick to take the lead at 11-under 133 — matching the lowest 36-hole total in event history. He opened with a 66 on Thursday, the best score ever by an amateur in the tournament.