Polk, a 5-foot-11, 183-pound standout for the Vikings, acknowledged Monday evening that Wisconsin had made a late run at securing his commitment, but that he was set to sign with the Hoosiers, whom he verbally committed to in October.
"I talked to a coach from Wisconsin on Friday," Polk said, referring to UW linebackers coach Brian Murphy. "I told him I was going to stick with the commitment to Indiana. He was still making a little push at it. The wide receiver coach [Henry Mason] called me a couple days ago. I talked to him a little bit. Then he called again but I haven't got back to him yet."
Asked if he was secure with his commitment to Indiana, Polk replied, "Yes, I am."
Polk starred at wide receiver and defensive back for Vincent. He expects to play receiver at Indiana but would not be adverse to playing defense if necessary.
"You never know what can happen," he said. "A lot of guys come in playing something and they may get changed to something else. Right now it is set for wide receiver."
Polk's high school coach, Elliot Lightfoot, said Monday that Northern Illinois was the first school to show interest in Polk last spring, followed by Wisconsin and Indiana. The Hoosiers, though, were the first to come through with a scholarship offer and had spent the most time recruiting Polk.
"He was, I guess, in Wisconsin's second tier and Indiana's first tier," Lightfoot said.
Polk said Wisconsin showed on and off interest in him.
"Then when I made the commitment to Indiana they were off for a while," he said. The Badgers touched base again after Gerry DiNardo was fired. "When coach got fired they were back on talking to me just a little bit but not really," Polk said. "They tried to make the little last push on Friday."
As a receiver, Polk is excited about new Indiana coach Terry Hoeppner, who came to Bloomington after orchestrating a high-octane passing attack at Miami of Ohio.
"I got a chance to talk with him a little bit," Polk said. "They may spread it out a lot and get the ball in the air."
Polk will take part in a signing day press conference at Milwaukee Vincent Wednesday morning that will also include Wisconsin commit DeAndre Levy.
"I'm really excited," Polk said.