Irvin was suspended by the NFL for the first four games of next season after testing positive for performance-enhancing substances, reportedly for using Adderall. He is the fifth Seahawks player to be suspended for using banned substances since 2011.
"The vets, we put a meeting together to talk to the guys about not making the same mistakes over and over," he said during a radio interview with SiriusXM Radio. "We have to grow up and move past that. That's pretty much the message right now, growing up and not making the same mistakes over and over."
Chancellor said Irvin was a key part of the defense but the backups will be able to fill his position because of the team's depth.
"Whoever steps in in that role will do an amazing job as well," Chancellor said. "So we shouldn't miss a beat."