No. 1s aren't ones to stay for weekend

Forty-nine players made the cut Friday at the Masters Tournament. World No. 1 Martin Kaymer is not one of them.

The reigning PGA Championship winner is among a star-studded group who will be watching the Masters on TV this weekend.

After opening with 78, Kaymer couldn't make up any ground with 72 in the second round. He missed the cut line of 1-over 145 -- which tied the record for the lowest cut -- by five shots.

The 26-year-old German now has missed four consecutive Masters cuts. He wasn't the only major champion to falter.

Reigning U.S. Open winner Graeme McDowell, No. 5 in the world, also failed to advance. The 31-year-old McDowell, of Northern Ireland, posted rounds of 74-73.

Louis Oosthuizen, the 2010 British Open winner, missed his third Masters cut in a row. The South African shot 75-74, with a double bogey at No. 17 the finishing blow.

Anthony Kim, who tied for 20th place in his first Masters and then placed third in his second last year, carded matching 73s to miss the cut by one. His front-nine 40 led to his downfall in the second round.

Zach Johnson, the 2007 Masters champion, also shot 73-73 to miss the cut by one. Stewart Cink, the 2009 British Open winner, shot 7-over on the first 12 holes of the second round for 75 to miss the cut by one.

Lucas Glover, the 2009 U.S. Open champion, couldn't recover from an opening 75. He added 71 in the second round to also miss the cut by one.

First-time Masters participant Mark Wilson, the leading money-winner on the PGA Tour, shot 76-71 to miss the cut by two shots.

Five of the field's six amateurs missed the cut. Hideki Matsuyama shot 73 to make the cut on the number. As the lone amateur to make it to weekend play he will win the low amateur honor and the silver cup that goes with it.

First-round co-leader Alvaro Quiros made the cut with ease to satisfy his goal for the week. In his third Masters appearance, the Spaniard finally advanced to weekend play, recording 73 in the second round. Quiros is four shots off the lead at 6-under.

"Well, obviously, I'm very happy," Quiros said. "So happy to be here again."

Fred Couples, who tied Gary Player for most consecutive cuts made with 23 (1983-2007) made his 25th cut. Couples, 51, the oldest player in the field to extend his stay, carded rounds of 71-68.