It wasn't Dion Sims' 40-time, shuttle run, bench press reps or vertical leaping ability that caught the NFL's attention.

There was one number that stuck out like a sore thumb when it came to many NFL talent evaluators' opinions of the Miami Dolphins' new tight end.

During his senior season at Michigan State it was documented that 17.1 percent of Sims body was fat.

Sims, one of the few effective blocking tight end prospects in the 2013 draft, played college football around 280 pounds.

But that was then, this is now. Last week Sims, the Dolphins' fourth-round pick, reported to Miami's rookie camp a svelte 264 pounds.

“I lost weight for the combine and getting ready for the next level,” said Sims, who caught 36 passes for 475 yards and scored two touchdowns his senior season with the Spartans. “Playing at 280 at State, 70 percent of the time I was required to block. I had to [carry the weight] to be effective in the run game and pass protecting. I did what the coaches asked me to do.”

Sims claims he had no problem cutting the weight courtesy of dieting and regular exercise. And Sims, who is 6-foot-4, is confident he won't have a problem keeping it off.

The Dolphins certainly hope so because Miami plans to use Sims as the tight end paired with Dustin Keller in the team's two tight ends packages. Because Keller, a free agent addition who spent his first five NFL seasons with the Jets, has a reputation as a limited blocker Miami will need Sims to excel in that area.