The veteran defenseman sustained a knee injury in Tuesday night's 5-2 loss at Tampa Bay.
Panthers coach Kevin Dineen said Jovanovski wouldn't play at Buffalo on Sunday, either. If there's any good news regarding Jovanovski, it's that an exam Wednesday revealed no structural damage.
"It's going to take a few days here, but the guy's heart is pretty big," Dineen said. "It's hard to put a number on how many days he'll be out."
As for Weiss, he continues to be sidelined by a groin injury and will miss his fourth consecutive game.
Dineen said the issue isn't conditioning, but rather making sure that Weiss isn't rushed back into action before he's ready.
"If it was conditioning, Weisser would be right into the thick of things for us, but I want to make sure a player as important as he is to our lineup is with us the next 40 games instead of for a short-term snapshot," Dineen said. "If Stephen Weiss was making the decision, it probably would be a different look to our lineup tonight. He's an important guy and we want to make sure that he's healthy."