An early enrollee from Hamilton Southeastern High in Indiana, Polk committed to Louisville in June and was one of the early leaders in Louisville's 2014 signing class. He caught just 18 passes for 295 yards and two touchdowns as a senior but had 31 catches for 762 yards and seven TDs as a junior, averaging 24.7 yards per catch that year.
He picked up early offers from Indiana, Louisville and Kentucky and chose the Cardinals after camp last summer. The No. 10 overall recruit in Indiana for 2014, Polk was rated the No. 95 wide receiver in the nation by rivals.com. Polk committed to Charlie Strong and enrolled before the coaching change.
Polk on Louisville: "Between all the schools that were recruiting me, I think Louisville had the most down to earth coaches and they were the most straight forward. I never thought they were BS'ing me about any situation and not telling me the truth. They keep me in the loop at all times, which was different from other schools who would just tell you what you wanted to hear instead of what actually was reality."