49ers All-Pro Trent Williams Exits Game with Hamstring Injury

49ers All-Pro offensive tackle Trent Williams left Sunday's game against the Bears with a hamstring injury after just one snap and was later downgraded to out. He was noticeably limping and removed his gear. Coach Kyle Shanahan is unsure of the severity, noting Williams has never pulled a hamstring before. The injury, sustained while chasing an interception, has potential multi-week implications, impacting the 49ers' pursuit of the NFC's No. 1 seed and their playoff run. Austen Pleasants replaced him, performing well. Williams' status for the crucial Week 18 game is uncertain.