With news of offensive tackle Adam Terry's lower left leg injury and defensive tackle Haloti Ngata's improving health dominating this morning's practice, there were a few other tidbits of injury news.

First, wide receiver Derrick Mason appeared to injure his right leg when he and rookie safety Haruki Nakamura collided during a full-team exercise. Mason limped off the field, but later appeared to put weight on the leg. Linebacker Edgar Jones walked gingerly off the field at the end of practice and slowly made his way to the locker room with what appears to be a right leg injury.

Not all of the news is bad. Wide receiver Demetrius Williams had the brace on his lower left leg removed, and he walked around the practice field with little difficulty. And defensive tackle Kelly Gregg, whose left leg was heavily wrapped yesterday, participated this morning.

Other observations:

* It's never a good sign when your first completion in full-team drills is an interception. That's what happened to rookie quarterback Joe Flacco, who was picked off by linebacker Brendon Ayanbadejo.

* Troy Smith and Mason connected on a nice touchdown strike during 9-on-9 drills. Smith threaded a pass between cornerback Frank Walker and rookie safety Tom Zbikowski and hit Mason in stride for what appeared to be 40-yard play.

* In the field-goal competition, incumbent Matt Stover converted attempts of 20, 31 and 50 yards, but banged a 40-yarder off the left upright. Rookie Piotr Czech was successful on all four of his tries from 20, 30, 41 and 51 yards.

* During kickoff coverage drills, cornerback Derrick Martin flattened wide receiver Matt Willis. Less than a minute later, linebacker Nick Greisen laid out rookie wide receiver Marcus Smith.