The Celtics are not taking it as a major issue, but the team is still hoping to straighten things out with Rajon Rondo after his decision to stay in Los Angeles and not accompany the team to Sacramento for Saturday’s game.

While some were displeased by the move, for which Rondo did not receive official permission, others pointed out he was not scheduled to play in the game anyway (on the second night of a back-to-back), and that he may have simply been making some assumptions based on precedent. Multiple sources say he remained in LA for a birthday celebration. He turned 28 on Saturday.

The captain didn’t want to get into the matter before last night’s 110-98 loss to the Jazz.

“We already talked about it,” Rondo said. “There’s nothing to talk about.”

That doesn’t appear to be the case. President of basketball operations Danny Ainge said yesterday he is still looking into the situation.

“I plan on talking to Rondo when he gets back into town,” he told the Herald. “I’ll find out more about what went into it, and then we’ll handle it internally. We handle all of those kind of issues internally.”

The possibility exists that Rondo could be fined, but if not, the team will likely gain a more well-defined set of rules from this.

Among that which could have factored into Rondo’s thinking was he had been left home from the trip to Milwaukee for the Feb. 10 game on the end of a back-to-back as he returns from a torn right ACL. Then there was the birthday plan.

“His wife and kids were with him in LA, and there were some other people who came in,” a source said. “I think he felt obligated to them, too, and what they had planned for his birthday.”