Despite not playing football until his sophomore year, Polk quickly proved that he has the talent to become a big-time receiver and school's are quickly noticing.
Ball State, Indiana, Louisville, Massachusetts, Miami (OH), Ohio and Toledo have all extended scholarship offers. Others such as Iowa, Missouri, Northwestern and Stanford continue to express an interest.
"It's always exciting to receive one," Polk said. "I feel really blessed to be in a situation where I'm getting the opportunity to play college ball. I'll never take one for granted."
Polk has made the short trip south a few times to visit the Cardinals program.
"Every time I visit Louisville it feels kind of like home," he told Cardinal Authority. "The campus is really nice and it's a good school for academics and the athletic programs are going great right now. I like how they run their football team. I like the offense that they have and how they throw the ball around. The coaching staff is real nice. Coach Strong is a great guy."
Polk, a Scout.com three-star target, currently lists Louisville, along with Indiana and Northwestern, his mother's alma mater, as his current favorites.
"IU is like the hometown school," he explained. "Growing up here you are naturally going to be an IU fan. I have a lot of fans that go there and they always have positive things to say about it."
Polk, who also runs track, is in no hurry to make his college choice.
"It's going to be hard to narrow it down," he said. "I'm just taking my time because it's a big decision, so there's no rush for me."
As a junior, Polk collected 31 receptions for 762 yards and seven touchdowns.