Signed the first week of training camp, rookie running back Mack Brown's has been busy, trying to impress on the field while learning the playbook as fast as he could.

Sleep took a back seat during Redskins running back Mack Brown's first few weeks with the team.

After being the last signing before the team headed down to Richmond, Va., for training camp, Brown had to cram countless hours of playbook study just to be slightly ready.

"Right now not really a lot of sleep, but I know things will slow down after the first five days," Brown told Redskins.com last week. "You can't play fast even if you want to until you learn the playbook, so right now I'm just trying to learn it mentally so I can perform on the field. I'm thankful for the opportunity that the Redskins have given me."

Brown appeared in 49 career games at Florida across the 2010-14 seasons, gaining 805 career yards on 210 rushing attempts with four rushing touchdowns.

His best statistical campaign came in 2013 when he rushed 148 times for 543 yards and four touchdowns.

He notched his first career 100-yard game that year in a 24-6 season-opening victory over Toledo in a game in which he stepped up in place fellow Gators teammate and current Redskins teammate Matt Jones.

For those that may not have seen Brown play in college, or simply look at his numbers in gaining just a little more than 800 yards in four years, the 5-foot-11, 215 pounder says he "brings a lot."

"I'm a physical player, pretty fast. I'm quick," he said. "I played a lot of special teams at Florida when other backs were in the game. I played most kickoff, punt returns. I just bring in a player that helps around the field, all day long."

On the Redskins' first unofficial depth chart of the year that was released on Sunday, Brown currently sits sixth at the running back position.

While it'll be a difficult hill to climb for Brown to make the 53-man roster, it has certainly been done before.

Just last year, Silas Redd Jr. went from far back on the depth chart to eventually making the active squad.

In four preseason games, the USC product recorded 34 carries for 157 yards – ninth-most in the league during the four-game slate – and a touchdown.

This year, Brown said he's noticed a friendly competition in the running backs room, one that includes Jones.

"It's great man," Brown said. "It's the same competition, so when I watch him [Jones] make plays, because I know you learn to play by watching guys make plays, it makes me excited. I try to make plays, too. With [Quinton] Dunbar and J-Reed [Jordan Reed] here also, there is about four Gators, so it feels like home a little bit. It's not Gator Nation, but it feels like home."

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