by Jason Wolf, USA TODAY Sports

PHILADELPHIA – Andrew Bynum has eased up on his workouts after experiencing “a lot of pain” in his left knee and is unsure if he’ll make his Philadelphia 76ers debut this month.

“I think I worked well for two days on the court and then I got a lot of pain,” Bynum said Monday, “so we backed down a little bit today. I’ll probably go on (the anti-gravity treadmill) tomorrow.”

There is no official target date for Bynum to join full-team practices, or for him to play in a game. But earlier this month, the one-time all-star center told reporters that he was hoping to appear in his first game with the Sixers “around the all-star break.”

Bynum was asked Monday whether he was still planning to play in a game this month.

“I’m not sure,” he said. “It’s all going to depend on if we get a setback or not. Right now, I think things are going well. I’m losing weight and staying on the court for as long as I can.”

But he also said the pain in his left knee “limits me from continuing to go.”

“I don’t know if it’s normal soreness, or if I’ll have to play with it,” Bynum said. “I don’t know what it is. It’s not anything that I haven’t felt, so it’s not new. And it continues to kind of go away over time, so it’s all good stuff. No swelling.”

Bynum said his rehab has advanced to the point where he was practicing defensive slides, dunking, full-court layups and post ups, but he has yet to practice shooting against live competition. He’s expected to advance to 1-on-1 shooting drills, then 2-on-2 before advancing to full 5-on-5 practice. He has previously indicated that once he progresses to participating in full practices, he thinks he’ll need between 10 days and two weeks to get into game shape.

Bynum the pain in his left knee is “definitely” more than what he’s tried to play through before.

“It’s just not ready yet,” he said.

The 7-foot, 305-pound Bynum has been unable to practice with his teammates or play in a game since being acquired … [For more on Bynum has knee pain, not sure of Sixers debut, click here.]