NEW YORK (AP) – American teenager Madison Keys showed her youth late in her second-ever match at a Grand Slam tournament, repeatedly blowing leads in a loss to 27th-seeded Lucie Safarova at the U.S. Open.

The 24-year-old Safarova won 3-6, 7-5, 6-4 on Wednesday to reach the third round. The 16-year-old Keys was the youngest player since 2005 to win a match at Flushing Meadows and at No. 455 the lowest-ranked woman in the draw.

She won the first five games en route to an easy victory in the opening set, then was up a break in the second.

In the third set, Keys twice went up a break only to give it back in the next game.

Keys was playing in her first Grand Slam tournament and just her third main draw at the tour level.

(Copyright 2011 by The Associated Press. All Rights Reserved.)

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