View gallery
By Mark Lamport-Stokes
UNIVERSITY PLACE, Washington (Reuters) - Masters champion Jordan Spieth birdied four of his first eight holes to briefly surge one ahead in the U.S. Open second round on Friday before slipping back with an ugly double-bogey.
Three strokes off the pace overnight at Chambers Bay, Spieth picked up shots at the 10th, 14th, 15th -- where he drained a 20-footer -- and the 17th to get to six under in the season's second major.