One of the NFL's top secondaries was running on half speed.

That's because two starters -- cornerback Samari Rolle and safety Ed Reed -- both didn't practice. But coach Brian Billick said after practice that neither injury was serious.

Rolle got a "ding" on Tuesday, when running back Mike Anderson ran through him in a red-zone drill. "He thinks his name is Sammy and not Samari right now," Billick said.

Reed tweaked his ankle.

STATUS UNKNOWN: Tight end Daniel Wilcox sustained what appeared to be an ankle injury and left the field with a trainer midway through practice. He did walk off without needing any help.

The Ravens haven't said how serious it is. "I'm not sure what Dan's situation was," Billick said.

NEW SPOT: Ronnie Prude made an impact last season as a rookie cornerback. Now, he's spending some time at safety.

The Ravens only have three experienced safeties in Reed, Dawan Landry and Gerome Sapp. One of their goals was to find a fourth one. It seems like Prude will have a shot at that spot.

ROUGH DAY: Backup quarterback Kyle Boller had one of his roughest practices of training camp.

First, he threw behind tight end Quinn Sypniewski on a lob pass into the end zone. That left Billick shaking his head for a while.

Then, in a matter of minutes, Boller fumbled a snap from center.

STRETCHING OUT: Clarence Moore made the best catch of this camp when he dove to haul in a 41-yard pass from Kyle Boller. It looked like the throw was too far ahead of him, but Moore went airborne to make the catch.

It was a shocking play because it's easy to forget Moore is still on the team. It seems like he hasn't been on the field since Denver cornerback Champ Bailey made that interception in front of him in the end zone last season.

TIME OFF: The Ravens won't return to the playing field until Friday morning. Billick canceled this afternoon's practice, and the Ravens already had Thursday off.