Former walk-on Mack Hollins making mark at WR for UNC Posted Sep 11, 2014 Mack Hollins has suddenly become a big-play receiving threat for North Carolina. The former walk-on has two long touchdowns on just four catches this year. He knows that conversion rate can't last but hopes it marks the start of a steady role in the no-huddle attack. "Obviously I can't expect every two times I touch the ball to score," Hollins said. (USA Today)