Gresham said part of the commitment was because of coach Charlie Strong and his staff. But Gresham also had a connection to the school, born and raised in Louisville until he was 12.
Now, U of L has named Bobby Petrino as the head coach and Gresham has a connection with the new coach. He watched Petrino from the stands many games during his first stint at U of L.
"My favorite running back of all-time is Michael Bush," Gresham said of the former U of L back, who starred for Petrino. "My grandfather has a janitorial service and they used to clean (Papa John's Cardinal Stadium). So, I used to go to game and watch them a lot.
"I was there when they played UK and Michael (Bush was injured). So I remember (Petrino)."
Gresham told Cardinal Authority on Thursday night that he was "waiting to talk to coach Petrino. I can't wait to talk to him."
The 5-foot-11, 225-pound Gresham said he was still committed to U of L and only had one visit - Jan. 17 to the Cardinals' campus - set.
"I want to talk to him and get to know him," Gresham said. "But so far, I have heard good things."
Gresham is ranked as the No. 1 fullback in the country by Scout.com.