Jefferson shot 11 for 12 from the foul line. He added nine rebounds and six assists. Ansong also had nine rebounds.
Amari Davis had 12 points for Green Bay (7-14, 7-10 Horizon League). Lucas Stieber added eight assists.
Bryson Langdon tied a career high with 22 points for the Norse (11-9, 9-6), whose six-game winning streak was broken. Marques Warrick added 16 points, and Adrian Nelson had 12 points and 16 rebounds.
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