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SALT LAKE CITY (AP) _ Utah Jazz center Greg Ostertag is expected to miss at least three games because of an abdominal strain resulting from donating a kidney to his sister in the offseason.

A Jazz spokesman said the strain was not career threatening and that trainers were being cautious holding Ostertag out of the Utah's 89-83 loss to the New York Knicks on Tuesday night.

``He's out there playing right now,'' Jazz spokesman Kim Turner said from the team's practice Wednesday. ``It's just an abdominal strain. It's just something from the surgery still, something that he's going to have to get through.''

Ostertag is expected to travel on a three-game road trip that begins in Cleveland on Friday, and he might play in the third game, in New York, on Oct. 22.

The 29-year-old Ostertag donated a kidney to his younger sister, Amy Hall, in June. Hall, 26, has had type 1 diabetes since she was 7. Her kidney problems began three years ago.

Ostertag played in the three previous exhibition games, averaging four points, 4.3 rebounds and 12.3 minutes.