Couples claims Augusta lead
Fred Couples claimed the clubhouse lead in the Masters aged 53 as Sergio Garcia and Dustin Johnson both plummeted down the leaderboard.
Garcia shared the overnight lead on six under par after a flawless opening round, but was 10 shots worse today as a swirling wind and brief spell of rain made life difficult for the early starters.
The 33-year-old Spaniard found the water three times on the back nine as a 76 left him two under par, but Johnson's collapse was even worse as he went from two shots clear of the field after 13 holes to four behind Couples.
Johnson was the first player to reach seven under par when he birdied the 13th, but bogeyed the next, dumped his third into the water on the 15th to take a double-bogey seven, bogeyed the 17th and then fluffed a bunker shot on the last for another double bogey.
In total the American was six over par for his last five holes, a stretch 1992 Masters champion Couples negotiated in one under to add a 71 to his opening 68.
At five under he led by one from another former winner, the 2009 champion Angel Cabrera storming home in 31 with five birdies in his last six holes.
Australian Marc Leishman was six under on the course with eight holes to play, and if he parred in would allow Chinese teenager Guan Tianlang to make the cut under the 10-shot rule.
Guan, at 14 the youngest player in Masters history, added a 75 to his opening 73 to finish four over par, but only after being controversially handed a one-shot penalty for slow play.
The rules state that players will be told when they are out of position on the course, then advised they are being put on the clock and if they subsequently receive two "bad times", are liable to be penalised.
Guan was warned on the 10th, started being timed on the 12th and then took too long over his second shot to the 13th and approach to the 17th.
Speaking to ESPN, Guan said: "I respect the decision. This is what they can do."
Asked how it would affect his experience of the Masters if he missed the cut by one shot, he added: "It's still a wonderful experience for me. I have the two days so far and I think I did a pretty good job."