No. 6 seed BYU beats No. 3 Wisconsin 91-89

DENVER — BYU withstood a ferocious charge from Wisconsin’s John Tonje to hold off the Badgers for a 91-89 victory Saturday that sends the program to the Sweet 16 for the first time since 2011 — the days of Jimmer Fredette.Tonje finished with 37 points, including eight during a desperate comeback down the stretch. But…