By Steve Keating AUGUSTA, Georgia (Reuters) - Jordan Spieth withstood heavy winds and even stiffer challenges to remain atop the Masters leaderboard, and will take a one-shot lead into Sunday's final round as he bids to complete a successful defense of his Green Jacket. The 22-year-old Texan has now held the outright lead for a record seven consecutive rounds and if he can remain there one more day will join Tiger Woods, Nick Faldo and Jack Nicklaus as the only men to claim back-to-back Masters wins. Spieth, who began Saturday's third round clinging to a one-shot lead, ended it in the same position after a wild afternoon at a windswept Augusta National, carding a one-over 73 that featured two double-bogeys on the back nine.
