After Jones went down with a left leg injury in the first quarter, Cobb left with a right knee injury in the second quarter. Neither player returned to the game.
Early reports on Cobb's knee are "good," a source told ESPN NFL Insider Adam Schefter.
"He'll be OK," the source said.
Packers quarterback Aaron Rodgers confronted Elam after the play. After the game, Rodgers said he thought Elam could have avoided taking a shot on Cobb's knee.
"I just felt like, from my vantage point, he had plenty of time to not take out a guy's legs in that situation," Rodgers said. "I think he could have hit in the proper hitting zone, and that's what I told him."
The Packers did not have any definitive information on either Cobb's or Jones' injuries after the game. Cobb returned to the sidelines on crutches in the second half, but Jones was not seen after his injury.
"We'll find out tomorrow," Packers coach Mike McCarthy said. "I'm hopeful with Randall for good information tomorrow once we get him back. James Jones, I'm hoping for good information there, too.
"I really don't have anything. We don't have a full diagnosis on either one of those guys."
The Packers were left with only two available receivers -- Jordy Nelson and the seldom-used Jarrett Boykin. Nelson finished with four catches for 120 yards and a score, while Boykin had one catch for 43 yards.
Cobb had four catches for 53 yards while Jones had one catch for 10 yards before departing. Cobb came into the game with a team-high 25 catches, while Jones led the Packers with 339 yards receiving.