Greg Robinson NFL Combine

Auburn offensive lineman Greg Robinson runs a drill at the NFL Combine in Indianapolis, Saturday, Feb. 22, 2014. (AP Photo/Michael Conroy)

INDIANAPOLIS -- Greg Robinson decided to take a nap Sunday, a reprieve from a head-turning showing at the NFL Combine and two months of workouts to get there.

The offensive tackle's long journey to Indianapolis paid off Saturday with a slew of superlatives from scouting directors and coaches, especially after completing the 40-yard dash in 4.92 seconds, a faster time than 60 other offensive and defensive linemen at the combine.

No one at this combine with Robinson's body type moved like him, but back in Arizona, where he has trained for the last two months, the 6-foot-5, 332-pound Robinson knew he could have done better.

The former Auburn star said Sunday he recently ran a 4.85.

"The coaches were telling me I should get 4.7, but I really just wanted to go out there and give it my all," Robinson said. "I had a little more adrenaline being on the big stage but I knew I was going to be somewhere in (that range)."

Robinson's performance was one of the hot stories from the first day of the combine. His draft stock, which was already soaring, could propel him to No. 2 in this draft as the top offensive tackle. He has competition, however, with the likes of Texas A&M tackle Jake Matthews and Michigan's Lewan Taylor, who was the fastest offensive lineman here (4.87).

Matthews remains the No. 1 tackle on NFL Network analyst Mike Mayock's list, but said Sunday people should not get "too hung up" where Robinson is ranked in relation to Matthews and others.

"I love the kid," Mayock said. "The only reason I don't have him No. 1 is because I think Jake Matthews is safer. Greg Robinson has got the most upside of any offensive lineman in this draft but I think there are other guys that are safer because they're a little bit further along as far as technique and number of snaps in college football."

Auburn offensive lineman Greg Robinson runs the 40-yard dash at the NFL Combine in Indianapolis, Saturday, Feb. 22, 2014. (AP Photo/Nam Y. Huh)

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Robinson understands, of course, but he still believes he's the top tackle in this draft. Plenty can change in this draft between now and May 8. South Carolina defensive end Jadeveon Clowney, Texas A&M quarterback Johnny Manziel and Matthews appear to be Robinson's primary competition when it comes to being selected No. 1 or 2.

The Texans own the No. 1 pick, and "gave me love" at the combine, Robinson said. The same could be said for most of the NFL teams. Robinson formally met with 10 teams Friday night and several more over the weekend.

Robinson said the Rams brought up "a lot of bad things" concerning his technique against LSU earlier this season. Several teams are also concerned about his pass blocking.

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Matthews got plenty of attention, too, and remains among many analysts' top two tackles and is expected to make an immediate impact wherever he plays.

"Being considered a polished player, someone who's done a lot and played well in my life, I'll take that as a (compliment)," Matthews said.

Robinson will continue training with the draft scheduled in May. He'll travel to New York to hear his name called, too, but it appears his head-turning performances will have to wait until he lands in a training camp. Robinson will not participate in the 40-yard dash or bench press at Auburn's pro day March 4.

Robinson's 32 repetitions on the 225-pound bench press is a personal best, though he believes he could have challenged 40 with another try. His previous best was 29 reps, he said Sunday.

Three of the top four picks, including the top two, were offensive tackles in the 2013 NFL Draft and Mayock believes the group this year is better.

But which tackle will go first in the NFL Draft? Robinson believes he's the best tackle on the board.

"I'm pretty sure everybody else feels they are, too," Robinson said.