More importantly, the 6-foot-2, 185-pound receiver left with a verbal scholarship offer.
"My first offer (Boston College) was really unexpected but my Rutgers offer, it was something I was hinted at from some of the players from my area that are there now," Blacknall said. "I did really well at the camp with my route-running and everything and from there, they gave me an offer. I loved it."
He did not spend time with either at Rutgers camp, but said that he loved the time spent with offensive coordinator Dave Brock, who coached his position at camp.
"I love coach Brock," Blacknall said. "You could tell he knew a lot about the position. He coached so many great players that are in the NFL right now. Coach Kyle Flood told me about that. He coached Marques Colston and Jordy Nelson. I was just really shocked because those are some really good players. I could tell he really knew what he was talking about and he's a coach I would definitely want to be coached by some day."
After impressing as a one-day camper, Blacknall got his first look at the new Rutgers uniforms.
"They took me into the locker room and I saw the chrome ones, the white ones and the black ones," Blacknall said. "They were incredible. ... They seemed pretty much almost like Oregon's. They're stepping up with the uniforms."
In addition to his Rutgers relationships, Blacknall is close friends with St. John Vianney (Holmdel, N.J.) wide receiver Ishmael Hyman, who remains a recruiting target for the Scarlet Knights.
"We're like best friends," he said. "I'm always hanging with him. I'm always around his house. We're really close. We've been close since Pop Warner."
As a sophomore, Blacknall helped lead Manalapan to a runner-up spot in the state title and a 10-2 overall record. He led the Braves with 11 catches for 138 yards on the season and contributed 71 rushing yards and a touchdown on the ground.
"My speed stands out," he said. "My speed is really deceiving. My strides are so long that it looks like I'm not running as fast as I should be running. But you put someone next to me, you see the way I can leave DBs behind me with my strides."