Angel Cabrera staged a remarkable finish to his second round to roar into contention for a second Masters title.
The Argentine birdied five of the last six holes to return a three-under 69 and move within two shots of the lead at the halfway stage at Augusta National.
The 2009 Masters champion struggled in the wet and windy early conditions as he bogeyed four and five to slip to one over, but his first birdie of the day at the 13th sparked an inspired late surge.
"For me, Augusta is never easy. Never, ever easy," said the 43-year-old. "The big difference was that the back nine I was hitting very well off the tee, leaving my second shots close and I was able to make some birdies.
"When the wind is tough, it gets tougher on this course. I'm used to playing with the wind in Europe when I played in Europe.
"So I'm not going to say that this is an advantage necessarily for me but I like playing with wind."