Let's just say there were some mixed results.
All three players were huge stars in college, and all three have a chance to be terrific pros. That said, they also have red flags that could cause teams to pass them over as the draft plays out in late-April.
With the combine and their pro days in the rear-view mirror, let's take a look at how their draft stock looks heading into the draft.
Manti Te'o, ILB, Notre Dame
Perhaps no player had to deal with more scrutiny and frustration the past couple of months than Te'o.
After the infamous "catfish" scandal that threatened to submarine Te'o's draft stock in January, the linebacker struggled at the combine. He looked sluggish running the 40, showed average explosiveness in the jumps and fell down during field drills.
Baltimore Ravens head coach John Harbaugh was not impressed.
NFL Network's Rich Eisen reported live from the combine that Te'o's official 40 time was 4.82 seconds, and questions swirled about his ability to be a three-down linebacker in the NFL.
Te'o looked much more relaxed and comfortable at his pro day in South Bend, and it showed on the field. He ran an "official" 40 time of 4.69 seconds, per ESPN's Matt Fortuna:
Te'o also looked smooth during the field drills, and while he may not have significantly boosted his draft stock, he did give himself some positive momentum heading into the draft.
Draft Stock: Holding steady as a late first-round pick.
Tyrann Mathieu, CB, LSU
Mathieu's draft stock was in the toilet before the combine.
This young man's character concerns have been well documented. He was kicked off LSU's football team in August, spent time in rehab and was then arrested in October for "simple possession of marijuana."
Boy, what a difference a few months have made.
Mathieu has seemingly done a 180-degree turn since that time. He has re-dedicated his life to the game of football, and his showings at the combine and then at his pro day have his draft stock soaring.
By all accounts, Mathieu put on a stellar show for scouts at LSU's pro day. Afterwards, NFL Network's Bucky Brooks said, via NFL.com's Chris Wesseling:
He continues to build a case for being one of the most intriguing nickel corner prospects in the draft...I think people will look at the playmaking ability, the fact that he created so many turnovers, made so many big plays for LSU in 2011, that they're going to take a chance on him somewhere in the third round.
Draft Stock: Shooting up, and it won't be a shock to see a team take a gamble on him in the late second round.
Matt Barkley, QB, USC
The 2013 draft class is not one that benefits teams in need of franchise quarterbacks. The only sure-fire first-round pick is Geno Smith, and there's no consensus about his pro potential.
Barkley had a chance to make a case for himself as the top quarterback in the draft at his pro day. He has been hidden from public scrutiny since getting injured last year, and his pro day was a highly anticipated event.
He didn't do anything to help himself, though. Barkley displayed average arm strength and iffy accuracy during his scripted throwing session, as Pro Football Talk pointed out:
Combined with the fact that Barkley isn't an athletic quarterback who can escape pressure by running away from it, this underwhelming display of passing did little to dispel the notion that he's a system quarterback who won't be a dynamic pro player.
Draft Stock: Holding steady as a late first-round, early second-round pick.
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