ROCK HILL, S.C. – Those three years of work paid off with a phone call to mom.

Tiawan Mullen has his invite to play in the U.S. Army All-American Bowl. That’s one of the many football dreams he’s dreamt since his older brother, Clemson cornerback Trayvon Mullen, was invited to play in the 2016 game.

On Tuesday, Mullen was one of four campers from the FBU Top Gun Showcase to score an invitation to play in the 2019 game, which is set for Saturday, Jan. 5 in San Antonio.

“It’s just hard work, dedication,” Mullen said, after he called his mom with the good news following the camp.

The celebration didn’t last long for Mullen (5-10, 160). Before the excitement wore off, reality set in – a load of online classwork was waiting for him back at the hotel. That’s life in early July when you’re trying to graduate from Coconut Creek High School (Pompano Beach, Fla.) in December.

Mullen doesn’t mind the sacrifice.

“It just makes you more responsible,” he said. “It just makes you do your classwork. If you’re really going to graduate early, you’re going to do the things – take time out and sacrifice things, not go out with the homies and things like that.”

The No. 69-ranked cornerback in the class of 2019, took an official visit to Pittsburgh in June. Up next is an unofficial later this month to Indiana. He’ll return to Bloomington for an official visit on Sept. 8. An official to Nebraska is set for Sept. 1. Kansas State will get one, too, though a date hasn’t been set.

Several factors will be considered, many of which are focused on factors outside of football.

“First, academics. I want to be a business man, so things that I could major in,” Mullen said. “(Want) to see the graduation rate, do they have a high rate of graduation? Things like that.”

His older brother, a junior sports communication major at Clemson, has offered plenty advice on how he’ll need to navigate life as a college football player.

“The main advice he gives me, like I said before, just go hard,” Tiawan said. “How he trained, the preparation. He said it’s all about preparation, like prepare to get on time class, wake up for practice, so he said it’s all about preparation.”

Trayvon (6-2, 190) was the No. 12-ranked cornerback in the class of 2016. In two seasons at Clemson, he’s logged 773 snaps over 26 games and totaled 57 tackles.

“I play different. My bro, he’s long. He can jump. But I feel like my game, in college, I’m going to be a true nickel back. I’m physical. I can stick fast guys on the outside. … I can stick from X to Z or Y to Z, things like that.”