(Salt Lake City, UT)  -- The Bruins went to Salt Lake City and stifled number-13 Utah in a 17-9 win at Rice-Eccles Stadium.  Josh Rosen threw for 220 yards and a touchdown in the low-scoring affair.  Paul Perkins padded the slim lead in the fourth quarter with a two-yard touchdown run as the Bruins get set for a showdown with USC next week for the Pac-12 South title.  The Utes were 8-of-19 on third down and fumbled twice as they lost their third game in five weeks after starting the year 6-and-0.  Joe Williams ran for 121 yards as he started in place of the injured Devontae Booker.