Smith played in the Senor Bowl and performed well.
Smith was given a return to school recommendation by the NFL advisory committee because they didn't project him to be picked within the first two rounds. Smith is projected anywhere from the third round to the fifth round.
Smith was a preseason Outland Trophy candidate who wasn't named All-Big Ten Conference last season.
A U.S. Army All-American in high school, Smith chose Penn State over scholarship offers from UCLA, Maryland and North Carolina State.
Smith has bench pressed 400 pounds and squatted more than 500 pounds, impressive strength for a position in which he'll need all the leverage he can find.
At Penn State, Smith dealt with the hardships of sanctions against the program stemming from the Jerry Sandusky scandal, Joe Paterno's death and the coaching change from Bill O'Brien to James Franklin.
"It made me into the man I am today," Smith said during the combine. "I learned to go through adversity. It taught me life is not easy. You have to be able to adjust and adapt. It definitely taught me a lot."