The injuries are seriously piling up for the Ravens.
Yanda was replaced by veteran Andre Gurode in the second quarter, while rookie Jimmy Smith came on to fill in for Williams, who was also injured in the second quarter.
UPDATE: Yanda is done for the day. He's standing on the sideline in street clothes.
To make matters worse, wide receiver/kick returner David Reed had to be helped off the field after getting injured on the opening kickoff of the second half.
Those guys' names can be added to a list of walking wounded that includes Anquan Boldin (knee surgery) and defensive end Cory Redding (ankle).
Linebacker Ray Lewis and cornerback Lardarius Webb are both coming off toe injuries, as well.