By Tyler Barto
Twitter: @Tyler_Barto
tbarto@trentonian.com

Less than a month remains until the start of Rutgers training camp. This top-25 countdown will run infrequently, documenting who's got the most to prove in 2014.

No. 21 — RG Chris Muller (6-foot-6, 300 pounds)

Why Muller's on the list: Muller started the last 12 games as a redshirt freshman, but he labored in pass protection.

It didn't help that he played next to four different players and that Rutgers' starters on either side missed a combined nine starts. Holding and unnecessary roughness penalties trailed him.

Still, he's the type of promising road-grader Rutgers covets as it enters the Big Ten. Can Muller showcase a more refined style?

During training camp, keep an eye on: Muller's body composition.

Few players underwent a more noticeable transition through two years than Muller, now one of Rutgers' more athletic linemen. Will Rutgers ask its line to carry more weight during a grueling season?

2014 outlook: A once highly prized recruit, the ceiling is still high for Muller, responsible for little pass protection in high school.

Teammate Keith Lumpkin will likely draw attention for his 6-foot-8 frame, but Muller could develop into an all-league-type lineman.

More from the countdown: No. 20 — Djwany Mera
No. 22 — Janarion Grant