Shields was entered into the NFL’s concussion protocol on Monday and missed the entire week of practice. He won’t be allowed to participate until he passes medical tests from both team and independent doctors. Shields suffered the head injury late in the win over the Jaguars, marking his fourth concussion of his NFL career.
Shields missed four games in 2015 because of a concussion, coming off a Pro Bowl season in 2014. The 28-year-old has never played all 16 games of the regular season during his six-year career, but was part of a group of defensive backs ranked as the third-best in the league in 2015 by Pro Football Focus.
Green Bay and Minnesota face off Sunday at 7:30 p.m. from the new US Bank Stadium.