According to their press release:
"Lakers guard Kobe Bryant was examined prior to tonight’s game by team physician Dr. Steve Lombardo and still has pain and swelling in his left knee. Bryant will continue with a program of non-weight bearing exercise, consisting mostly of working out on a stationary bike. He will be examined again in approximately three weeks."
The Black Mamba overcame an Achilles tear earlier in the season only to come back and injure his knee.
This also means that Kobe will definitely not be in the All Star game, so that's settled.