NFL Combine 2014: Preview, Schedule, TV Coverage, Invites, and More

The 2014 NFL Scouting Combine is finally here. Draft prospects started arriving to Indianapolis on Wednesday in preparation for the on-field workouts at Lucas Oil Stadium which start this Saturday. A total of 335 invitees, including an NFL combine record 85 underclassmen, will show off their skills to scouting staffs of all 32 NFL teams. Prepare yourself for this year's NFL combine with everything you need to know.

2014 NFL Scouting Combine Schedule:

Saturday, Feb. 22: Tight ends, offensive linemen, special teams
Sunday, Feb. 23: Quarterbacks, running backs, wide receivers
Monday, Feb. 24: Defensive linemen, linebackers
Tuesday, Feb. 25: Defensive backs

TV Coverage: NFL Network
Start Time: 9 AM EST daily

Eagles Speaking Schedule

Only Eagles' General Manager Howie Roseman is set to speak with the media at the combine this year. Roseman will be at the podium at 2:30 PM EST. If you want to watch live, NFL Network might air it but there's no guarantee. If you miss it, have no fear: BGN will recap the highlights of the interview later on the site. Chip Kelly has opted not to speak this after having done so last year. Bummer.

A complete NFL combine speaking schedule can be found here.

Bleeding Green Nation Coverage

BGN will have you fully covered through this year's event. Here's some reading material we've released already.

• Players to Watch: Chip Kelly's Shortlist

• Mike Mayock Conference Call: Eagles target Dee Ford | The "Best Draft Class in Ten Years | Complete Highlights

• 2014 NFL Draft Profiles

• Eagles NFL Draft News and Rumors

BGN Radio Combine Preview

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SB Nation Coverage

SB Nation's NFL draft site, Mocking The Draft, will be covering the NFL combine from Indianapolis. Follow @MockingTheDraft and @MatthewFairburn on Twitter for live updates.

Workout Drills

Courtesy of good friend Invictus at Big Blue View, here are the drills the players will participate in.

40-yard dash: Measures straight line speed over a distance. Not very important for non-skill position players, but coming from the 40-yard dash is the "10-yard split." That is the time it takes to travel the first 10 yards of the event and gives a measurement as to the player's explosion and first step. Very important for defensive and offensive linemen. Dontari Poe had a 10-yard split of 1.7 at 330 pounds, which is decent for a linebacker. Bruce Irvin at 235 pounds had a 10-yard split of 1.57, which is a good number for a defensive back. Both help push those players into the middle of the first round.

Bench press: Fairly simple, it measures upper body strength. Moreso it shows if you have stayed in good condition over the offseason. Poor numbers here possibly indicate not working hard enough.

Vertical and Broad jump: Another measurement of explosion and lower body strength. Also important for wide receivers and defensive backs to show off their leaping ability.

3-cone drill: Essentially a change of direction drill. Most important for skill position players. Shows off lateral agility and ability to accelerate out of a turn. One of the drills that translates best on the field. A good score in the 3 cone is often a marker for a high draft pick.

20/60-yard shuttles: Shows the ability to come to a complete stop and accelerate. Obviously important for any position and a good score here is indicative of explosion and body control. As you can see, explosion is a big factor here and one that the NFL is keen to see.

Position-specific drills: Each position has specific drills that test for many different attributes. Change of direction and hip swing for defensive backs, hands skills for wide receivers during the "gauntlet," kick slide drills for the offensive linemen, power for the defensive linemen in hitting bag drills and accuracy for quarterbacks in throwing drills.

The 335 Invitees

A record breaking 85 underclassmen will participate in this year's NFL Scouting Combine.