Big Board: David DeCastro rising

Mel Kiper's weekly Big Board has been updated again, with no change in the top two spots. The Pac-12 owns them both with Stanford quarterback Andrew Luck locked in to the No. 1 spot and USC tackle Matt Kalil holding steady at No. 2

But a third Pac-12 player cracked the top 10 this week with Stanford guard David DeCastro climbing from the No. 12 to the No. 10 spot.

Here's Kiper on DeCastro:

Extremely consistent, plus athletic and powerful in the run game. A rare guard who could get some looks in the first round. In fact, this is as high as we've seen an interior lineman in a while.

Stanford tackle Jonathan Martin and ASU linebacker Vontaze Burfict also appear in Kiper's latest top 25.

As a refresher, here's how Kiper rated the top five players at each position.