Will Dolphins RB Lamar Miller rush over/under 1,200 yards?

Lamar Miller is coming off a career year where he rushed for 1,099 yards and eight touchdowns. AP Photo/Wilfredo Lee

Training camp is just 10 days away for the Miami Dolphins. With that in mind, let's take a look at key players who need to have a big year for the team to be successful.

First up is Miami starting running back Lamar Miller.

Over/under total: 1,200 rushing yards

The case for over: Miller, 24, is a young running back entering his prime. He's coming off a career year where he rushed for 1,099 yards and eight touchdowns. Miller got these numbers despite just 216 carries. He also averaged a career-best 5.1 yards per rush in 2014. Miller could surpass 1,200 yards with good health and a few more carries per week. He put on about 15 pounds of muscle this offseason to handle the wear and tear that comes with the position. Add in the fact that Miller is entering a contract year, and you could be a motivated player looking to put up big numbers.

The case for under: Miller isn't your typical "bell cow" running back. He's not going to get 25 carries a game, which means Miller must keep his yards-per-carry average very high. In fact, Miami's coaching staff only gave Miller 15 or more carries in six of 16 games last year. He also never hit the 20-carry mark, which is unusual for a 1,000-yard rusher. Miller has durability questions dating to college at the University of Miami. One injury could derail Miller's chase for 1,200 yards. The Dolphins also drafted bigger rookie running back Jay Ajayi in hopes that he take some carries away from Miller between the tackles.