Bernd Wiesberger joined a six-way tie for the lead as things tightened up on day two of the Masters Tournament.
The Austrian was one under after four holes to sit at three under for the week alongside Matt Kuchar, with Henrik Stenson, Patrick Reed, Adam Hadwin and Charley Hoffman all having moved to the top of the leaderboard without having yet teed off at Augusta National.
That was partly due to Jordan Spieth dropping four shots in his first eight holes to fall to two under alongside Rory McIlroy, Rafa Cabrera Bello and Rickie Fowler.
Overnight leader Spieth got off to a nightmare start, sending his tee-shot right into the crowd and he could not make it onto the fairway with his second which was well back. His third failed to reach the green and when he could not get up and down, his two-shot lead had evaporated already.
He was replaced at the top of the leaderboard by McIlroy and Kuchar with the American making a good save on the first as he parred his first four holes, while McIlroy had a roller coaster.
The Northern Irishman bogeyed the first but holed a brilliant 30-foot right-to-lefter on the second and when he hit a big drive and chipped to four feet on the next he was four under.
He would then bogey the fourth and with Kuchar dropping a shot on the fifth, there was an eight-way tie for the lead.
Cabrera Bello had bogeyed the second but set up a tap-in birdie on the third before he dropped out of the lead with a bogey on the fourth.
McIlroy then bogeyed the sixth and at that point, there were 19 players within two shots of the lead.
Cabrera Bello was not out of the lead for long as he hit back in stunning style, putting a 174-yard approach to a foot for another birdie on the fifth.
Wiesberger was next to get in on the act, as he laid up on the second and put his approach to seven feet for an early birdie, but Cabrera Bello made it five holes in a row without a par when he bogeyed the sixth.
Fowler then joined the lead with his second birdie of the day from 25 feet on the eighth. He had bogeyed the first and hit a nice approach into the fifth for a birdie but needed a brilliant 66-foot putt to save par on the sixth.
Spieth's woes then continued as he missed the green with his approach to the seventh and dropped a fourth shot of the day.
The logjam at the top was then finally broken by Wiesberger at the short fourth as he left himself just 56 yards off the tee and got up and down to get to four under.
He would not be alone for long, however, as he missed the green on the par three fourth and dropped back into a share.
Fowler was next to drop a shot as he surrendered a bogey on the ninth.
Zach Johnson and Marc Leishman were also at two under and yet to tee off, a shot clear of a group containing Louis Oosthuizen, who had completed eight holes in level par.
Justin Rose, Francesco Molinari and Dustin Johnson were all three shots off the lead.
