Usual trio in latest draft projections

We knew Andrew Luck was in. This week, offensive linemen Jonathan Martin and David DeCastro officially declared themselves for the NFL draft. Here's how Mel Kiper Jr. projects the three on his latest Big Board, followed by Todd McShay's Top 32.

  • No. 1 Andrew Luck: A typically brilliant, accurate, understated game for Luck to finish his Stanford career. I don't foresee a situation in which he relinquishes this spot before the draft. Has total package: arm strength, size, smarts and demeanor.

  • No. 9 Jonathan Martin: Martin is officially in. Trusted in the passing game as the blindside protection for Luck, he also does a great job in the run game. Given his athleticism, he has a chance to develop into a fantastic player on the left side.

  • No. 13 David DeCastro: Extremely consistent and is athletic and powerful in the run game. A rare guard who could get some looks in the first round. DeCastro, along with Martin and Luck, is officially in the draft.

Now here's McShay's take on the three.

  • No. 1 Andrew Luck: Finished his college career with a bang, showcasing his entire skill set while completing 27 of 31 passes for 347 yards and two scores in the Fiesta Bowl. Next stop, Indianapolis?

  • No. 10 Jonathan Martin: Martin is not the same pass-blocker as (USC's Matt) Kalil, but his strength and power in the running game give him the look of a solid NFL right tackle for years to come.

  • No. 15 David DeCastro: DeCastro was the most dominant interior lineman in the nation in 2011, and he's the kind of physical lineman capable of being an NFL starter from the first minute of training camp.