Dolphins signed fifth-round RB Mike Gillislee to a four-year, $2.322 million contract.
Although Gillislee lacks special traits, he couldn't possibly be any worse than Dolphins incumbent backup and second-round flop Daniel Thomas. Gillislee fights hard for yards, has some necessary shake to him, and flashed violence in blitz pickup at Florida. With Lamar Miller having only carried the football 51 career times, Gillislee is a sleeper for rookie-year fantasy value.
Dolphins signed fourth-round TE Dion Sims to a four-year contract.
The 106th overall pick, Sims was primarily used as a blocker at Michigan State, but has slimmed down and is a natural pass catcher, even if he offers no explosive traits with the football in his hands. The Fins seem to believe Sims can grow into an Alge Crumpler type. He's expected to play significant snaps as a rookie behind blocking-deficient starter Dustin Keller.
Dolphins claimed WR Marvin McNutt off waivers from the Eagles.
A 2012 sixth-rounder, McNutt couldn't make it past final cuts before being promoted from the practice squad for four games late in the season. McNutt has 4.50 wheels to go along with a 6-foot-3, 216-pound frame, but has the makings of a career special teamer/practice squader.
New Dolphins CB Brent Grimes (Achilles) remains on pace to be ready for training camp.
Grimes isn't putting a percentage on his recovery, but says he's "feeling good" and "being smart" in his rehab. Grimes will be 364 days removed from his injury when the Dolphins take on the Browns in Week 1.
Dolphins TE/FB Charles Clay (meniscus surgery) is 100 percent.
"I'm good and ready to go," Clay said Tuesday. Clay should enter the season as the Dolphins' No. 2 pass-catching tight end behind Dustin Keller. Fourth-round pick Dion Sims is primarily a blocker.
Lamar Miller is aiming for 1,500 rushing yards and five yards per carry this season.
"I'm trying to get bigger and faster, improve my explosiveness so I can break more tackles, make guys miss," Miller said Tuesday. "Trying to become a great back in this league." They're lofty goals, but everyone besides Daniel Thomas believes Miller will get a chance to meet them as the Dolphins' starting back. Miller has exciting talent, but the Dolphins are taking a bit of a risk by putting so many eggs in the basket of a back with just 51 career carries. Miller should be treated as an RB2 in fantasy drafts.