Spencer Hawes is preparing for arthroscopic surgery on his left knee on Wednesday, which could end his rookie NBA season before it begins.

The best-case scenario for the Sacramento Kings' center is a two to four weeks' recovery, but given his history with knee problems, the Kings are unsure when he would be able to play. Hawes has had at least four procedures, including at least two scopes on the left knee.

"He will be evaluated after the first procedure," Kings spokesman Darrin May said in a telephone interview this morning. "I can't tell you how long he'll be out because I'm not a doctor. All I know is he's having arthroscopic surgery performed tomorrow and we'll take it from there."