Iowa senior defensive tackle Carl Davis is considered one of the top NFL draft prospects at his position.

What makes him so good?

Davis estimates he spends six hours a week studying film, not to mention he holds the Hawkeye record for defensive tackles in the hang-clean lift at 415 pounds.

Watch now as he breaks down the final play of last year's 17-10 win over Northwestern, and pick up Sunday's Des Moines Register and Iowa City Press-Citizen to read columnist Bryce Miller's report on Davis – on his NFL potential and his surprising down-time hobby.