John Fox has been released from a hospital in Charlotte after undergoing open-heart surgery.

Jack Del Rio will coach the Denver Broncos this week in Fox's place.

Fox released a statement, providing an update on his condition:

"My recovery is progressing well -- I am feeling better and getting stronger each day. I will begin the next phase of my recovery in Charlotte and continue outpatient appointments with doctors, who will clear me to return to Denver when the time is right. Although I'm eager to return to coaching, my No. 1 focus is my health. I believe in our players and have full confidence in Jack Del Rio and our staff."