Bridgewater underwent surgery on his left knee Thursday, Ben Goessling of ESPN.com reports.
Head coach Mike Zimmer relayed that the procedure didn't reveal any structural damage but the torn ACL and dislocated left knee previously known from Bridgewater's last MRI. While he commences a lengthy rehab, the Vikings will turn the offense over to Shaun Hill or newcomer Sam Bradford, who was acquired Saturday from the Eagles.