David Nalbandian pulled out of the U.S. Open because of an injury on Tuesday, a day before he was scheduled to play 2009 champion Juan Martin del Potro in an all-Argentine matchup in the first round of singles. Nalbandian cited a strained muscle in his chest.
About 10 years ago I would have picked this guy to be #1 eventually and have several majors under wrap. Would have never predicted his career to have gone the way it has.
