Martin is only 20 years of age, but he has no shortage of size. The USC junior measures in at 6-3, 320 lbs. Martin lined up as USC's starting left offensive guard in 2011 and 2012. In 2013, he became the team's starting center. Martin earned first-team All-Pac-12 Conference honors in his final season at USC.
Here's a scouting report on Martin via CBS Sports. They currently project him to be a 2nd or 3rd round draft pick.
STRENGTHS: Only a third-year collegiate player but already boasts the frame of an NFL interior lineman, possessing the naturally thick build conducive to playing in the trenches. Good quickness off the snap, showing the ability to get to the second level as well as seal defenders to create running lanes.
Possesses good core flexibility and natural knee bend to help him anchor against bull rushes. Slides well laterally to mirror pass rushers and keeps his head on a swivel to help teammates.
Plays with some nastiness. Plays to the whistle and isn't opposed to getting an extra shot in as the whistle blows. A good athlete whose flaws are coachable, suggesting that his best football is still ahead of him.
WEAKNESSES: Only has one year of starting experience at center and is likely to remain at this position in the NFL due to his less than ideal height. Plays very low, which gives him a natural leverage advantage but also makes him prone to effective swim moves from taller defenders. Relies on his punch too much, over-extending and getting himself off-balance.
Spends too much time on the ground because he attempts to knock defenders over rather than simply mirroring them or working to sustain his blocks. Can be a step late in reacting to surprise blitzes. Good quickness to the second level but doesn't redirect well.
COMPARES TO: Alex Mack, Cleveland Browns -- Mack was among the more polished and talented centers in recent history when he left Cal and was selected by the Browns with the 21st overall pick of the 2009 draft. Martin isn't yet at this stage but his upside is clear, as is his grit and physicality. With dedication to his craft, Martin could emerge as a quality starter in the NFL.
Martin would make sense for the Eagles due to his versatility. Jason Kelce already has the starting center position locked up but the depth behind him is unsettled. Julian Vandervelde has yet to prove he's a viable backup center and David Molk was added this offseason after not spending last season on an NFL roster. The Eagles would also likely see Martin as a future starter at offensive guard. With Evan Mathis (32) and Todd Herremans (31) both aging, the Eagles need to find a long-term answer at that position.
Last, but certainly not least, a look at Martin's spider graph. Look at those long arms!