Chicago Bears defensive coordinator Alan Williams resigned on Wednesday, saying he needs to tend to himself and his family.
"I am taking a step back to take care of my health and my family," he said in a statement. "I appreciate the opportunity to work with the Chicago Bears, a storied NFL franchise with a rich history."
Williams' resignation comes just two games into his second season with the Bears. He missed last week's loss at Tampa Bay for what the team said were personal reasons after working the opener against Green Bay.
Coach Matt Eberflus called the defense in Williams' absence and figures to do so again when the Bears visit Patrick Mahomes and the Kansas City Chiefs on Sunday.
Williams thanked the McCaskey family as well as Eberflus, general manager Ryan Poles and President Kevin Warren. He also vowed to coach again.
"I value the NFL shield and all that it stands for, and after taking some time to address my health, I plan to come back and coach again," he said.