GLENDALE, AZ - DECEMBER 27: Tackle Bryan Bulaga #75 of the Green Bay Packers on the sidelines during the NFL game against the Arizona Cardinals at the University of Phoenix Stadium on December 27, 2015 in Glendale, Arizona. (Photo by Christian Petersen/Getty Images)
GREEN BAY, WI - NOVEMBER 30: Tackle Bryan Bulaga #75 of the Green Bay Packers on the sidelines during the NFL game against the New England Patriots at Lambeau Field on November 30, 2014 in Green Bay, Wisconsin. The Packers defeated the Patriots 26-21. (Photo by Christian Petersen/Getty Images)
The Green Bay Packers may not know specifically the severity of the knee injury of often-injured Bryan Bulaga, but there is major cause for worry according to Mike McCarthy's words.
The head coach told reporters Monday night after the Packers' 30-17 loss to Detroit that the team is "very concerned" with Bulaga's status.
He was injured in the second half of the game after being driven to the ground by a Detroit pass rusher.
Bulaga has missed 19 games in the past six seasons-plus in Green Bay, part of an often-injured offensive line in recent years. He suffered an ankle injury earlier this year.