"We have notified the league, and we have not heard back from them," said Packers coach Mike McCarthy. "They have been notified."
Meanwhile, Appleton police issued more details of Barnett's arrest, which occurred about 2 a.m. on Sunday morning at the Wet, an Appleton, Wis., nightclub.
According to police, Barnett got into a fight with a female acquaintance inside Wet and pushed her to the floor. A bar owner got involved and the owner's argument with Barnett spilled out to the street, where police officers became involved.
"When the officers initially asked Mr. Barnett for some identification, he was uncooperative and very argumentative and refused to provide ID, refused to give a name or anything of that nature. He subsequently did provide identification but continued to argue with the officers," Sergeant Pat DeWall, Appleton Police Department, said.
Officers arrested Barnett. He was booked into the Outagamie County Jail and was released after posting a $500 bond.
Police say they plan to pursue a misdemeanor charge of battery against Barnett, but it's up to the Outagamie County district attorney to decide if Barnett will face charges. The district attorney's office said there is no word when or if Barnett is expected in court.
The woman Barnett, 26, allegedly pushed was not injured.
Many of Barnett's teammates declined to comment on the incident after practice today.
"I have no idea what's going on," said linebacker Brady Poppinga. "I wish him the best, obviously. I just hope he's back on the field as soon as possible. That's all I can say."
Barnett, the leader of the team's young group of linebackers, signed a long-term deal with the Packers worth $34.5 million in April. He has started for the Packers since his rookie season in 2003.
"He's a great guy. I love him. I love him as a teammate," Poppinga said. "He's a guy I can trust. He's a guy who has my back and I have his. I hope he's with us as much as possible. Other than that, I don't know what's going to happen."