MADISON, Wis. (AP) -- Bronson Koenig scored 20 points Tuesday night and No. 15 Wisconsin shut down Penn State in the second half on its way to an 82-55 victory.
   The Badgers (17-3, 6-1 Big Ten) started to shake off the Nittany Lions (11-10, 3-5) after Ethan Happ came alive.
   He struggled in the first half, shooting 2 of 6 from the field, in part because Penn State's Mike Watkins blocked him twice in the span of about 5 minutes.
   But Happ asserted himself to open the second half, scoring on the Badgers' first two possessions to spark a 13-2 run that put Wisconsin up 52-38 on Vitto Brown's 3-pointer. They wouldn't be threatened the rest of the way.
   Brown finished with 16 points, while Happ added 14 and eight rebounds.