Posted by ESPN.com's James Walker
The first week of training camp can be dangerous. In case you missed it, here are some key injuries that took place over the weekend.
Defensive tackle Haloti Ngata was carted off the field Sunday with a right leg injury. There is no definitive update, but Ravens coach John Harbaugh said Sunday that he doesn't think it is serious.
Left tackle Jared Gaither sprained his ankle Saturday. He couldn't practice Sunday because it was still swollen.
Guard Seth McKinney hurt his ankle Saturday.
Receiver Donte' Stallworth is still nursing his hamstring. He has yet to fully participate in training camp.
The Pittsburgh Steelers and Cincinnati Bengals open their training camps Monday. The AFC North version of the Blog Network is live in Georgetown, Ky., with the Bengals this week, so check back later for updates.