The Cornerstone Insurance Group Columbus Seniors open play tonight as the No. 4 seed in the A6 area tournament. 

Cornerstone faces the host team, fifth-seeded South Sioux City tonight at 8.  The winner will move on to face top-seeded Lincoln Northeast Saturday at 8 p.m., while the loser will play an elimination game tomorrow at 5 p.m. against Lincoln North Star or Fremont. 

Columbus went 18-7 in the regular season.