Saints head coach was a sideline casualty sunday in the 26-20 loss against Tampa Bay.
Payton fractured his tibia and a torn MCL. He will have surgery tomorrow morning.
His leg got caught under tight end Jimmy Graham when Graham was tackled out of bounds on the Saints sideline in the first quarter.
Payton coached from the bench for most of the first half. Payton watched the second half on television from the locker room while getting medical treatment.