By Jeff Vinton, Blogger/Editor, On the Clock

The NFL Scouting Combine began today with groups one through three, which consisted of offensive linemen, tight ends, and special teams players, taking the field at Lucas Oil Stadium in Indianapolis.

The primary story to come from the performances today was that of 305-pound Arkansas-Pine Bluff offensive lineman Terron Armstead in the 40-yard dash. Armstead, the second lineman to run the 40 this morning, ran a blistering time of 4.71 seconds. To put that time into perspective, last year’s top performer for offensive linemen in the 40 (Donald Stephenson, Oklahoma) ran a 4.94, the average time for offensive lineman today was a 5.23 and top prospect Luke Joeckel from Texas A&M ran a 5.30. Armstead’s time is the new record for offensive lineman at the Combine.

Armstead had already begun to shoot up draft boards because of his performance at the East-West Shrine Game last month. His 40 time, along with his 31 reps in the bench press, vertical jump of 34.5 inches and his broad jump of 112 inches will no doubt help make him rise up draft boards even more.

Other top performers on the day were Stanford’s Zach Ertz and Notre Dame’s Tyler Eifert, the consensus top two tight ends in this year’s draft class.

There has been much coverage by the media over these two, who are battling to become the top tight end taken in the Draft on April 25. And battle they did today, as they interchanged spots in the top performers group through the various drills. Eifert bested Ertz in the 40-yard dash with times of 4.68 seconds and 4.76 seconds respectively. Ertz toppled Eifert in the bench press test by two reps, 24-22. Eifert came back and beat Ertz by five inches in the vertical jump, 35.5-30.5. That trend continued in the broad jump as Eifert out leaped Ertz 119 inches-111 inches. Analysts from NFL Network said that Ertz looked more natural catching the ball, so the battle lives on.

A story from off the field was also a large story during the first day of the Combine.

Notre Dame linebacker Manti Te’o took to the podium at 2:15 p.m. EST, his first press conference since the Lennay Kekua incident and his first public appearance since his interview with Katie Couric. Te’o, whose press conference was called “a zoo” in a tweet by Miami Dolphins beat writer Ben Volin, was asked both questions about the incident and general football questions.

When asked if NFL teams had talked about the incident with him, Te’o said, “They all talked to me about it.”

Te’o also made it clear that he is done talking about the incident, first reported in January by Deadspin.com, and that he is moving on and focusing on football.

The NFL Scouting Combine consists of 11 groups each holding certain positions that take the field for drills over the course of four days. Group one has kickers, special teamers, and some offensive linemen. Group two is all offensive linemen, and group three is the tight ends. Groups four and five consist of quarterbacks and wide receivers, and the running backs are in group six. Groups seven and eight consist of defensive linemen and group nine has the linebackers. Groups 10 and 11 hold the defensive backs.

Tomorrow is the skill position day with groups four, five and six taking the field to participate in the various drills and impress NFL Scouts. Drills will begin at 9 a.m.

Coverage of the NFL Scouting Combine will continue through Tuesday, along with daily player previews on On the Clock: Your NFL Draft Destination.