Pacers not disclosing reasons
Carlisle, who kept the volatile forward out of Tuesday's 102-101 victory over the Minnesota Timberwolves, said after the game that Artest would also sit out Wednesday night against the Los Angeles Clippers.
"We had a situation develop yesterday I felt compromised the integrity of the team," Carlisle said. "It's a private team matter, and I'm going to leave it at that."
Artest was bothered by a sore knee during the preseason, but this was the first regular-season game he missed.
"I had some personal things and coach thought it would be best if I sit out these two games," he was quoted as saying in the Indianapolis Star. "I wanted to play but he wanted me to sit out. I'll do whatever he says to do.
"I'll be back shortly."
Said teammate Stephen Jackson: "We need our All-Star back, and he'll be back. ... This is the last you'll hear of this."
Artest, often in trouble throughout his six-year career, sat along the baseline most of the night in his warmups - without pouting.
"I was impressed with how he came out and supported the team," Carlisle said.
Information from The Associated Press was used in this report.