76ers will be without Andrew Bynum for three weeks

Andrew Bynum’s anticipated Philadelphia 76ers’ debut is on hold.

One day before training camp was set to open, the Sixers announced Monday they would shut down their new franchise center for three weeks as a precaution after he received knee treatment in Germany. Bynum was grounded before his first practice in the No. 33 jersey.

‘‘I’m going to do everything in my power to get back,’’ Bynum said.

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Bynum had injections of plasma-rich platelets that supposedly stimulate healing in arthritis-affected areas in both of his knees. The Sixers said last week he was cleared to play in camp. Bynum felt some discomfort late last week and, after meeting with doctors in New York and Philadelphia, the Sixers made the call to bench him, wanting to give him enough time to have the treatments take hold in the knee.

The team said Bynum, acquired from the Lakers in a four-team deal in which it shipped Andre Iguodala to Denver, is set to make $16.1 million this season in the final year of his contract.

Bynum came to Philadelphia with an oversized warning label on his achy knees. He’s been plagued by problems in the past, one reason he sought out the same treatment — called Orthokine — in Germany used by former Los Angeles teammate Kobe Bryant and New York Yankees third baseman Alex Rodriguez.

Bynum said this current knee ailment isn’t as bad as the issues that have dogged him in the past. He reported no swelling in his knees.

‘‘I feel a lot better,’’ he said. ‘‘The Orthokine is definitely working.’’

The 76ers also announced they picked up the 2013-14 option on coach Doug Collins’s contract.

Thibodeau extended

The Bulls gave coach Tom Thibodeau a four-year contract extension through the 2016-17 season. Thibodeau, a former assistant under Doc Rivers with the Celtics, was the NBA’s Coach of the Year for the 2010-11 season and the runner-up last season. The Bulls had already exercised their option for next season, and the extension runs through 2016-17. The Bulls would not reveal the financial terms. Yahoo Sports, citing unidentified league sources, reported the deal includes $17.5 million in base salary with bonuses, potentially pushing the package to $20 million . . . Wizards point guard John Wall, tabbed to miss the first month of the season with a left knee injury, hopes he’ll return sooner than expected. ‘‘Luckily, I’m young,’’ said Wall, who was diagnosed with the early stages of a stress injury to his left kneecap. ‘‘Hopefully, it’ll heal quicker than what it takes older people.’’ Wall averaged 16.3 points, 8.0 assists, and 4.5 rebounds last season . . . Bucks forward Luc Richard Mbah a Moute is expected to miss most of training camp while recovering from offseason knee surgery. Mbah a Moute underwent surgery on his right patella tendon in May and hopes to return early in the season.

Irving ready to goCavaliers point guard Kyrie Irving pronounced himself fit for his second season. Last season’s rookie of the year, who broke his right hand this summer in a moment of frustration during practice, was the center of attention as the team held its media day. Irving said his hand has completely recovered . . . NBA Sixth Man of the Year James Harden is holding out hope that he’ll reach terms on a contract extension with the Thunder by the end of the month . . . The Hornets said guard Eric Gordon will be limited in training camp while he recovers from surgery on his right knee . . . The Hawks signed former Georgia Tech standout Isma’il Muhammad. The 6-foot-6-inch swingman has played professionally in Europe, South America, the Middle East, and New Zealand.