Trail, a member of the Class of 2015 and a commitment to U of L, was in a group of about 10 players visiting Papa John's Cardinal Stadium.
The 6-foot-2, 200-pound Trail was also at PJCS for the opener against Ohio University.
"I always love going back to Louisville," Trail said. "It was a little slow offensively, but it was a win. I enjoyed seeing and visiting with all of the coaches."
Trail, who moved to Mississippi from Arkansas in January, had a sensational season for the Conquistadors, who finished 7-5.
Trail, who is one of two '15 commitments for the Cardinals, said he would come back to U of L this summer for camp.