Bridgewater, who was limited in practice on Wednesday, sprained his left ankle in the fourth quarter of Sunday's 41-28 win over the Atlanta Falcons. The rookie completed 19 of 30 passes for 317 yards in the win. If Bridgewater is unable to play, former first-round pick Christian Ponder is expected to start.
Bridgewater took over the Vikings' starting job after veteran Matt Cassel suffered a season-ending foot injury in a week 3 loss to the New Orleans Saints. The Vikings selected Bridgewater, 21, with the No. 32 pick in the first round of this year's draft. Over three seasons at Louisville, Bridgewater completed 68.4 percent of his passes for 9,817 yards and 72 touchdowns.
Vikings linebacker Chad Greenway has been ruled out for the Green Bay game. Greenway, who broke his hand in Minnesota's week 2 loss to the New England Patriots then broke his rib a week later against the Saints, also missed the win over the Falcons win. The 31-year-old recorded 83 tackles and three sacks over 16 games last season.
The Vikings are 2-2 this season with wins over the Rams and Falcons and losses to the Patriots and Saints.
- Chris Johnson