McCarthy told reporters Jones's shoulder has been bothering him since Aug. 19 but the linebacker has played through the pain. It become worse, however, after Sunday's 28-24 victory over Minnesota and the Packers' medical staff has decided surgery is needed to clear it up, the Milwaukee Journal Sentinel reported.
"It's the same shoulder that Brad injured in training camp," McCarthy said. "He has been fighting through it. He wants to try to keep going. We haven't made a decision on which direction we are going to go, but at some point it will require surgery."
If surgery is opted for sooner rather than later, Jones would miss the rest of the season. He will definitely miss Green Bay's next game, to be replaced by Frank Zombo, the coach said.