During a night when Nebraska misfired often from three-point territory, Connor Essegian came up big from deep. With his team clinging to a four-point lead with 5:50 left in the game, Essegian buried a three-pointer to give the Huskers breathing room. He followed with two free throws and another basket to help matters, and NU went on to a xx-xx victory against Texas Rio Grande Valley in the season opener for both teams. With three newcomers in the starting lineup, and a roster that’s been largely overhauled, Nebraska had to smooth out some rough edges. But thanks mostly to returner Brice Willia…