Clippers forward Blake Griffin has missed the entire season with a stress fracture in his left kneecap.

Griffin, the first overall pick in this past June's NBA Draft, is starting to increase his activity and the team hopes to have him back by the end of January.

If all goes well, Griffin could resume basketball activities in three weeks.

"We'll just take it week by week and next week bump it up to the next level -- not really sure what this is," Griffin said. "We'll talk to the doctors and coordinate.

"It was a relief. But at the same time I've still got to show improvement through these next few weeks."