"The overall day was good. I got to see the facilities and stuff like that," Long said. "I have seen most of it before because of my close proximity to the school, I went a few times during the summer when my recruitment first started.
"We started off just talking about academics and the requirements at USC. From there we checked out the weight room and toured the school and saw the dorms, pretty much like an official visit.
"I got to meet the whole staff. Sark was down on Thursday to my school, so I was just touching bases once again with the coaching staff."
"One of my goals was seeing what USC has to offer for the player outside of football," he said. "Also I wanted to see the kind of guys they are recruiting and see where I stand and what I can do and help bring to the class."
The Loyola Cubs struggled in 2014 to a 4-6 record and a lack of depth on the squad forced Long to play both sides of the ball. He started at wide receiver and cornerback for Loyola, helping to make Long a more well-rounded player.
His versatility did leave him with a decision when it came to which coaches he would spend time with on Saturday.
"Throughout the day I talked to both Keith Heyward and Tee Martin, but at the end of the day I went to the defensive meeting with Coach Heyward," he said. "I played DB out of necessity last year, but I am very comfortable with the position and I wouldn't mind playing it at the next level."
On the visit, Long wore a No. 15 Trojan jersey, same as former USC receiver Nelson Agholor.
"Nelson Agholor is a really good guy, I met him at the Rising Stars Camp," Long said. "I have built up a decent relationship with him. At the camp he gave me some good routes that allowed me to get open and at the end of the day I was one of the receivers that he liked out there. After that he followed me [on Twitter] and we have been talking bit by bit."
Heading into the weekend, Long had accumulated 13 college scholarship offers, including his most recent from Michigan. There was hope of picking up No. 14, but that offer did not come on Saturday.
"I definitely hoped for an offer from USC," he said. "It is close to my school and the Trojans were a favorite of mine growing up. They have talked about evaluating me and I know that they loved my film. They told me they were watching my film early in the morning.
"You never know what their needs are, so all I can say is time will tell. If they need me then the offer will come then."
Stay tuned to USCFootball.com for more updates on USC's elite junior day.
Ryan Abraham has been the publisher of USCFootball.com since 1996. You can follow him on Twitter at @InsideTroy or email him at firstname.lastname@example.org .