Tailback Shelton Sampson of Lakewood has been allowed to return to the No. 7 jersey he has used in previous seasons. Sampson began the season wearing No. 27.
Willingham said the single practice Tuesday was a good session with improved tempo over recent days.
With reserve kicker/punter Michael Book nursing a minor knee injury, the Huskies had punter Sean Douglas, kicker Michael Braunstein and snapper Danny Morovick practice in yellow jerseys previously reserved to mark quarterbacks off limits to serious contact.
True freshman Donald Butler has moved into competition with Tahj Bomar and Trenton Tuiasosopo for the starting job at middle linebacker, Willingham said. Starter or not, Butler said Tuesday he has gotten the impression he will not redshirt.
Defensive back Roy Lewis wore the honorary gold practice jersey Tuesday.