The Chicago Bears released an update on the tight end's status on Monday:
"During our game at the New Orleans Saints yesterday, TE Zach Miller sustained a serious injury to his left knee and immediate evaluation from our medical team on site rushed him to nearby University Medical Center New Orleans (UMC) for urgent vascular surgery to repair a torn popliteal artery," the statement read. "Successful surgery was performed immediately on Sunday by the UMC vascular surgeons to stabilize his injury. Zach remains at UMC, along with Bears medical personnel, where he will stay under further evaluation. We are thinking of Zach and his family and support from our entire organization goes out to them."
Miller suffered a dislocated knee on what was initially ruled a touchdown grab only to be overturned by replay officials in Sunday's 20-12 loss to the Saints.
Later on Monday, Bears coach John Fox gave more details on Miller's status.
"There's a vascular issue -- [Miller's] artery was torn during the injury. They took a vein from his good leg and repaired it. I think he's got great vascular people including our doc and training staff. [His wife and father] are with him at that hospital.
"I actually talked to Zach a few hours ago. He pretty much wanted his touchdown back but he was in good spirits. Right now, the report is that it will take a while to make sure he remains good. He's got a good pulse in his leg [and] has good feeling -- his foot is warm, which is a good sign. I'm not saying he's out of the woods by any stretch but it's as good as it can be expected at this point."
Fox said Miller will remain in New Orleans until he is medically cleared to return to Chicago.