Blazers, Greg Oden to undergo knee surgery today

On Monday,  Greg Oden is set to undergo his fifth knee surgery during last five years.
The Blazers announced on Monday that Oden will undergo an arthroscopic procedure on his left knee in Vail, CO. Oden has not appeared in an NBA game since December 2007 and there is no timetable for his return.
Monday's surgery was expected. Back on Feb. 3, Oden underwent the same arthroscopic procedure on his right knee and Blazers Acting GM Chad Buchanan said at the time that doctors wanted to address his left knee as well.  

"He's still considered out indefinitely," Buchanan told CBSSports.com at the time. "Having this procedure on the right knee and the possibility of his left knee doesn't increase the likelihood of him playing soon."
This procedure and marks the third time Oden will have surgery on his left knee.