For Flacco, it's an adjustment on the fly to get acclimated to so many unfamiliar receivers since the Ravens are shorthanded.

"We've got a lot of guys right here that are new faces, I don't even know if I know them really," Flacco said. "We're throwing them right in the mix."

"Now, it’s time for me to make plays and make a defining role for myself. I can take pressure of Derrick and Mark so they don’t have to go out there and make every play."

Meanwhile, the Ravens began evaluating a trio of free agent hopefuls.

That includes Porter, a former Jacksonville Jaguars starter cut one year after signing a six-year, $30 million contract, Washington, an imposing former Cincinnati Bengals third-round pick who caught one pass last season for the New England Patriots, and Perry, a special-teams standout who was out all of last season with a torn Achilles' tendon with the Miami Dolphins.

D.J. Hackett was invited to try out, but changed his mind and visited the Houston Texans, according to his agent.

Washington was narrowly the most impressive of the three with the way he was able to move downfield and how he extended to snag a low pass.

Porter looked somewhat lethargic and wasn't as quick as the other receivers, but caught a few balls.

Perry was fairly quiet on the field, but reported in good shape.

"This seems like it could be a perfect fit for me," Perry said. "I can play special teams and all of the receivers positions and I'm big and fast, but we have a lot of big and fast guys here. It's a numbers game, so you never know if it's going to work out or not."

Wearing a red jersey signifying he's off-limits to contact, Williams ran routes during drills and estimated that he's at 80 percent physically.

Having gained 15 to 20 pounds, Williams still looked quick. However, he had a noticeable limp when he was walking back to the huddle, a hitch that wasn't evident during his routes.

“Really, walking hurts more than running," Williams said. "I think when I’m running I’ve kind of trained my mind to run smoothly, not to think about it.

“But when I’m walking, I feel it because it’s a slower motion. I’m probably going to walk with a limp for a little while. As long as I can run, I’m all right.”

Retained by the Ravens as a restricted free agent with the low tender of $1.01 million, Williams caught 13 passes for 180 yards and one touchdown last season.

The former fourth-round draft pick from Oregon is regarded as the Ravens' top deep threat when he's healthy.

"We’re talking about having a deep threat, but you look at the games last year and I wasn’t there," Williams said. "Mark was making plays downfield, Mason was making plays downfield, so it’s not just me.

"All of us can make those plays. I think it’s just a lot of people who don’t get a chance to see us work every day, so they don’t get to see everything that’s going on. "