Listen now:
NBC Sports Amani & Eytan

Oudin says she has muscle-damaging condition - NBC Sports

Oudin says she has muscle-damaging condition
APARC
Melanie Oudin, of the United States, hits the ball during her match against Angelique Kerber, from Germany, at the Citi Open tennis tournament in Washington, Thursday, Aug. 1, 2013. (AP Photo/Pablo Martinez Monsivais)
November 25, 2013, 3:19 pm

Surprise 2009 U.S. Open quarterfinalist Melanie Oudin (oo-DAN) says she has a muscle-damaging condition that may be caused by intense exertion.

Oudin has written on her Twitter feed that her "off season is a little paused at the moment" because of the ailment, called rhabdomyolysis (rab-doe-my-OL-uh-sis), and she is "doing everything possible for a speedy" recovery.

Her agent, Sam Duvall, confirms to The Associated Press on Monday that Oudin sent the tweets.

Oudin, who turned 22 in September, is ranked 129th. At 17, she pulled off a series of upsets, including against Maria Sharapova, to reach the U.S. Open's final eight.

Heavy exertion can cause muscle cells to leak enzymes and protein into the blood. Symptoms of rhabdomyolysis can include muscle pain and severe cases can lead to kidney damage.

© 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Slideshow