Mastromatteo, a 6-foot-1, 215-pound linebacker from Absecon (N.J.) Holy Spirit, will visit UNC on Wednesday and Thursday.
"[During my visit], I just want to talk to the coaches, see what kind of players they have there, see the facilities, and the academic support," Mastromatteo said. "I just want to learn a lot more about the school overall."
UNC first began recruiting Mastromatteo two Fridays ago when assistant coach Allen Mogridge made an evaluation trip to Holy Spirit and then verbally offered him later that evening.
"I saw [Mogridge] in school [that] Friday and then talked to my coach," Mastromatteo said. "He said he saw my tapes and really loved them. Later in the night, my coaches told me to call him. I called him and he said ‘We're going to offer you.'"
Ten schools in total have offered Mastromatteo, including Boston College, Cincinnati, Illinois, Maryland, Michigan State, NC State, and Rutgers.
Since receiving an offer, Mastromatteo and Mogridge have remained in constant communication.
"I've been talking a lot to Coach Mogridge – probably once a week," Mastromatteo said. "[He discusses] the school and where I fit into their defense."
In addition to the UNC visit this week, Mastromatteo is working on scheduling trips to Illinois, Maryland, and Michigan State. He has previously visited Boston College, Penn State, and Rutgers.
Preferably, Mastromatteo would like to make a verbal commitment before he begins preseason practice on June 26.
"That's ideally what I want to do, but it might get hard," Mastromatteo said. "I'm not going to push myself, but I really want to get it done."
Heading into this week's UNC visit, Mastromatteo is favoring in-state Rutgers.
"I have a good relationship with the [Rutgers] coaches and I really like the school," Mastromatteo said.
One of the major differences between UNC and Rutgers is their proximity to Mastromatteo. However, he says that won't be a factor in his collegiate decision.
"I would go anywhere, really," Mastromatteo said.
Mastromatteo's desire to commit before preseason practice is so he can focus as much of his attention on Holy Spirit's bid to repeat as NJSIAA Non-Public Group 3 Champions.
"I think we have a great chance of winning [the championship] again," Mastromatteo said. "We just have to work hard."
Since becoming a starter as a sophomore, Mastromatteo has primarily played outside linebacker. However, he has played some inside linebacker and fullback on offense.
"Some [colleges] say inside [linebacker], but most of them say I could play inside or outside for them," Mastromatteo said.
Mastromatteo ended his junior season with 90 tackles, 11 sacks, two forced fumbles, and two defensive touchdowns (one from an interception and the other from a fumble return).