Jonas Gray didn't show what he was truly capable of at Notre Dame until his last season.
The running back emerged as a power runner as a senior, amassing 791 yards with 12 touchdowns on 114 carries in 11 games.
A torn anterior cruciate ligament in his right knee in his final home game ended Gray's breakout season, but it started him on a path to possibly play in the NFL.
Gray took part in some of Notre Dame's Pro Day activities on Tuesday, just five months removed from surgery.
"It's crazy," Gray said of being talked about as any where from a third-round to fifth-round pick. "It's certainly a blessing. I just make sure I'm doing everything I can to get back to where I was before."
Gray pushed his bench press number from 20 at the combine to 22 at Pro Day. He ran and cut during passing drills, but he didn't take part in other running or agility drills.
"I felt like I could do a little bit more," said Gray, who admitted he has been told to hold back while he continues to recover from surgery.
"It was all about patience," Gray added about returning from the injury. "A lot of times, I maybe felt a little over confident, but my doctors and physical therapist gave me great advice. I started to feel really good in about three and half months. When I came back from the combine, that's when I started to do a lot more running stuff, straight ahead speed stuff. I knew at this point I'd be pretty far ahead."
NFL Network analyst Mike Mayock, who is also the color commentator for NBC's broadcasts for Notre Dame games, said he was just happy Gray could take part in the Pro Day.
"You're talking about four or five months removed from an ACL," Mayock said. "I think the important thing for him is just to show the NFL teams that he is well on his way back. Obviously, he can't do a whole of change of direction, but just to see him catch the ball and move, shows he can pass the medical (exam) and get into camp."