He has tendonitis in one of his knees.
Knee injury forces Nalbandian out of Kooyong Classic
Wed Jan 10, 2007 8:10 AM GMT
MELBOURNE, Jan 10 (Reuters) - Argentine David Nalbandian withdrew from the invitational Kooyong Classic on Wednesday because of a knee injury, organisers said.
The world number eight arrived in Melbourne with a niggling knee injury and pulled out from the remainder of the tournament after losing his opening match 5-7 6-1 6-2 to Russia's Marat Safin.
This is the second year in succession that Nalbandian has had to cut short his stay in Kooyong. He retired with an upset stomach during his first match in 2006.
Organisers were unable to confirm whether Nalbandian still intended to compete at the Australian Open, which begins on Monday.
His place in the Kooyong draw has been taken by Chile's Fernando Gonzalez, the world number 10.