Brandt Snedeker of the United States and Angel Cabrera of Argentina shared the lead at seven-under par 209 after the third round of the Masters here.
Snedeker opened on four under, two back from 36-hole leader Jason Day of Australia, and he parred the first 12 holes before advancing with three birdies in four holes to get to seven under on Saturday.
Cabrera, the 2009 Masters winner, also picked up three shots on the day, making a birdie at the last to finish, like Snedeker, with a three-under 69.
Missed putts for Day
Day, who led the field by one overnight, looked set to join Snedeker and Cabrera in a three-way tie for the lead, but he missed short putts at the last two holes to slip back to five under.
That was one back of countryman Adam Scott (69), who was alone in third at six under.
A third Australian, Marc Leishman, was level with Day at five under after a 72 with Matt Kuchar (69) alone on four under and South African Tim Clark on three under after a 67, the best round of the day.
Level with Clark was Tiger Woods, who was hit with a two-stroke penalty for an improper drop before the round started, but then clawed his back into contention at three under with a round of 70.
The 32-year-old Snedeker, who was the form player on the PGA Tour at the start of the year before picking up a rib cage injury, said that he would call on all the experience he gained while sharing third Trevor Immelman at the 2008 Masters.