Former top-10 player Mardy Fish pulled out of the U.S. Open on Wednesday, the latest setback in his bid to make a comeback on tour after dealing with heart issues.
The U.S. Tennis Association said the 31-year-old American cited ''personal reasons'' for his withdrawal. The draw for the year's last Grand Slam tournament is Thursday, and play begins Monday.
Fish's Twitter feed carried this message Wednesday: ''Friends, unfortunately my health won't allow me to compete this year at the US Open. Thank you for all your support.''
He has missed months of action at a time over the past two seasons. On Tuesday, Fish stopped playing in the third set of his match against Jarkko Nieminen at a hard-court tournament in Winston-Salem, N.C., because of heat stroke.
Fish has played only eight matches on the ATP World Tour in 2013, going 3-5. He skipped all of the Grand Slam tournaments this season while entering only five other events on the main tour.
A year ago, Fish reached the fourth round ...