Williams has shown toughness and some ability to create leverage and shed blocks, but Riddick isn't sold on him.

"I wasn't that high on him coming out of college and haven't seen anything to change my opinion," Riddick said. "He's an early-down run plugger who can be caught with his head down and snatched and thrown to the ground. I don't see any huge upside, but maybe he'll prove me wrong."

While the Ravens' top three draft picks have defined roles, fourth-round fullback Kyle Juszczyk and linebacker John Simon have been limited to special teams, with fifth-round offensive tackle Rick Wagner playing occasionally on offense in extra-lineman packages. He's the top backup at left tackle and right tackle.

Marlon Brown overcame the odds to make the final roster after tearing his anterior cruciate ligament last November while playing for Georgia.

At 6-5, 205 pounds, Brown is a large downfield target. That has enabled him to be competitive right away.

"He looks just like he did in college — lots of inside-outside versatility, good hands, tough and deceptive speed after the catch," Riddick said. "He can eat up ground with long strides. I think he should win more contested jump balls and isn't going to separate much downfield, but they've gotten everything you could want out of him as an undrafted guy."

Brown has 26 receptions for 297 yards and is averaging 11.4 yards per catch. His longest was a 59-yarder against Green Bay, a play on which he displayed an ability to accelerate after catching the ball on a short route. Brown caught a career-high two touchdown passes and added a two-point conversion Sunday, contributing 14 points in the Ravens' loss to the Cleveland Browns.

"It's like a dream come true for my rookie season," Brown said. "I can definitely get better and become a more fine-tuned receiver and understand coverages better. I'm pleased right now, but I can definitely get way better."

awilson@baltsun.com

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Ravens’ Rookie Class

Nearly midway through the NFL season, here’s a look at how the Ravens’ rookies have fared:

Round / Player / Position / Size / College / Skinny

1st round / Matt Elam / Safety / 5-10, 210 / Florida / Impactful plays haven’t developed for defensive back since becoming starting free safety.

2nd round / Arthur Brown / Linebacker / 6-0 235 / Kansas State / Despite obvious talent, hasn’t forged a full-time defensive role as undersized defender adjusts to NFL level.

3rd round / Brandon Williams / Defensive tackle / 6-1, 335 / Missouri Southern / Massive small-school product starting to catch on, recording a sack and forced fumble.

4th round / John Simon / Outside linebacker / 6-1, 257 / Ohio State / Gritty special-teams contributor earns his keep strictly on kick coverage.

4th round / Kyle Juszczyk / Fullback / 6-1, 245 / Harvard / Projected hybrid role hasn’t developed for versatile former Ivy League star.

5th round / Rick Wagner / Offensive tackle / 6-6, 308 / Wisconsin / Now the top backup at left tackle and right tackle, Wagner has had his moments in spot duty in extra lineman schemes.

6th round / Kapron Lewis-Moore / Defensive end / 6-4, 310 / Notre Dame / Still recovering from torn anterior cruciate ligament in BCS national title game, on reserve non-football injury list and is essentially redshirting this year.

6th round / Ryan Jensen / Center / 6-4 320 / Colorado State-Pueblo / Has yet to see his first game action since recovering from foot surgery, but coaches like his potential as developmental prospect.

7th round / Aaron Mellette / Wide receiver / 6-2, 217 / Elon / Underwent knee surgery and placed on injured reserve after encouraging preseason performance.

7th round / Marc Anthony / Cornerback / 5-11, 196 / Cal / Cut by the Ravens, Anthony is now on the Tampa Bay Buccaneers’ practice squad.

Undrafted / Marlon Brown / Wide receiver / 6-5, 205 / Georgia / Imposing size-speed target has outshined drafted receivers to catch 21 passes for 243 yards, leading Ravens with three touchdown catches.