MIAMI (CBSMiami) – On pure size alone, former University of Miami offensive tackle Seantrel Henderson should be a top NFL prospect at the Senior Bowl this week. But with Henderson, there’s much more to the story that makes him arguably the biggest boom or bust player in the 2014 NFL Draft.

Henderson came to the University of Miami as the top-rated high school recruit in the nation and was expected to step in and dominate the tackle position.

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Officially, he stands 6’, 6-7/8 inches tall and weighs in at 331 pounds. He has a wing-span of 84 inches, has quick feet, and should be one of the dominant players at his position. But, through a combination of personal issues, drug issues, and other problems, Henderson has been an enigma.

According to the South Florida Sun-Sentinel, he was suspended three times while at UM and he told NFL teams the suspensions were for marijuana usage. What teams will want to know is whether Henderson has a problem with marijuana or if it was just recreational drug use.

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Countless players have had drug questions when they came into the NFL Draft and turned out to be some of the best players at their respective position. Two of those players are Warren Sapp and Randy Moss. Both had drug questions around them and some teams dropped them off their boards.

Tampa Bay and Minnesota took chances on both Sapp and Moss and it paid off in a big way for both franchises.

Will the same happen for Henderson? That remains to be seen. According to the Sun-Sentinel, he’s projected as a fourth-round prospect partly due to his off-the-field problems and partly due to his perceived lack of desire on the field.

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But, if Henderson can put it all together, a team desperate for offensive line help might strike gold in a later round with the massive Miami tackle. Only Henderson can now determine how his NFL career will end up.