Butch did not practice during the Badgers' workout at the Kohl Center here Sunday evening, wearing a protective boot on his left foot that stretched to just below his knee.
Butch was not available for comment Sunday and UW coach Bo Ryan offered no additional information regarding the injury in his postgame press conference Saturday.
Butch is averaging 4.6 minutes, 3.4 rebounds and 12.0 minutes per game.
Sophomore forward Alando Tucker, Wisconsin's leading scorer at 14.7 points per game, enjoyed his most extensive practice Sunday since injuring his right foot in practice Jan. 9.
Sunday, Tucker took part in UW's drills during the portion of practice the media is allowed to watch. During scrimmage sessions, Tucker alternately rode a stationary bicycle and practiced with his teammates. He did not appear to be favoring the injury.
Tucker has not been available for comment since the injury occurred.
Tucker missed one game because of the injury but has played in the Badgers' past two games, averaging 6.0 points, 8.5 rebounds, 2.5 assists and 24.5 minutes in those contests.