APPLETON, Wis. — Lawrence University opens the Northern Collegiate Hockey Association playoffs this weekend with a quarterfinal series at No. 7/8 St. Norbert College. The teams meet Friday and Saturday at the Cornerstone Community Center, and both games are set for 7 p.m. Lawrence enters the weekend fresh off a split of the final series of the regular season, and St. Norbert is riding a three-game win streak.