General manager Kevin Pritchard acknowledged this weekend that the Trail Blazers had questions about the health of Greg Oden before they selected him with the No. 1 pick in the June NBA draft, but that his right knee was not among them.

Oden had season-ending micro-fracture surgery on his right knee Thursday, stunning the organization.

"We had worries about a lot of things, but not his knees," Pritchard said.

Nearly all the Blazers' pre-draft worries were tempered when Oden's agents allowed the Blazers to perform a series of magnetic resonance imagings on various parts of Oden's body, including his wrists, hips and knees.

The MRI on his knees taken June 20 -- eight days before the draft -- came back "absolutely pristine," Pritchard said.