That changed in a hurry as he indicated Thursday night that he would indeed make his commitment to the Vols official Friday afternoon.
"I just love everything about Tennessee," Zanca told InsideTennessee. "I got a chance to meet with coach Dooley for a few minutes. I really like coach Sal (Sunseri). He told me they really wanted me and it just felt right. I talked to my dad and we agreed it was time."
The Lake Brantley (Fla.) High School product was originally being recruited for the JACK linebacker position, but things have changed a bit.
"I talked to coach Sal about where I fit in the defense," Zanca said. "I told him I really want to play the WILL backer spot. He said that is fine with him and I was pumped.
"I got to sit in on a defensive meeting with coach Sal and he is just so intense and in your face all the time. I really like his energy and what he brings."
Zanca, a 6-foot-2, 235-pounder, is excited to enjoy the rest of his weekend after arriving on campus Thursday afternoon to start a long weekend on Rocky Top.
"I can't wait for the Orange and White game Saturday," he said. "That should be a lot of fun. I want to see a game in that stadium. My dad is with me this weekend and we can't wait."
Zanca, who finished his junior season with 58 tackles, six tackles for loss, two sacks and two forced fumbles, is focused on improving his game to finish out his high school career on top.
"I am trying to get stronger," he said. "Usually when I making plays it is me overpowering people and getting into the backfield. I have good game speed and I try and bring it every time that I am out there. I am trying to work on my speed right now too. I am not slow, but there is room for improvement too."
Zanca calls himself an emotional player, so much so that he has to keep himself in check from time to time.
"I am trying to stay more even keeled on the football field," Zanca said. "I play with a lot of emotion and sometimes I let it get the best of me. During my senior year I want to step up and be a leader for my team."