Now we know why Justin Blackmon opted out of the 40-yard dash at the 2012 NFL Scouting Combine.
At Oklahoma State's pro-day this morning, Blackmon unofficially clocked a 4.45 in the 40. His 7.15 time in the 3-cone drill was less impressive.
It's worth noting that Oklahoma State is known for having a fast track. Many scouts add time to the unofficial results to factor in the track. Regardless, Blackmon's 40-time is not likely to drastically change anyone's opinion on him one way or the other. Teams will look to see how he runs on tape, rather than how he ran on OSU's notoriously fast track.
Blackmon is still not a top ten pick, in my opinion. And this 40-time doesn't change the fact that he had a chance to prove himself at the combine and passed on that opportunity. It would have been nice to see him on a level playing field with the rest of the wide receivers in this draft class.