The 6-foot-4, 200-pound Callinan is already on Notre Dame's radar. He made an unofficial visit for a game last month, and is hoping to swing by South Bend, Ind., in the offseason.
"It was fun. It was everything I heard," Callinan said. "Beautiful campus, great team, coaches are nice. It's everything I heard. You can't really beat Notre Dame academically. It's a top-notch school. The campus is beautiful. I fell in love with it.
"They haven't seen film, so they're going to hold off (on offering) until they come here and see me and see film."
Callinan's recruiting contact is assistant Chuck Martin.
"He's a good guy," said Callinan, whose lone offer is from Rutgers. "He's pretty stern and straight forward. He'll tell you, ‘This is an institution where you're going to work hard, you're not going to skip class. You're not going to slack or anything. You're going to get your job done and you're going to success in football.'
"He's pretty straight forward with you."
One unmistakable message Callinan heard during his visit was the intensity and focused needed to attend Notre Dame.
"You know if you go there, there's no slacking off and you have to work 100 percent in academics and athletics," Callinan said. "What stood out was just the tradition of the team. Everyone always says it, but you don't really realize it until you go. I was in the locker room, and so many great players played in that locker room, and so many great coaches have coached there."
As a junior, Callinan caught 23 passes in a run-dominated offense.