Ty Dieffenbach’s stunning rise: UCLA’s former 3rd-string QB leads unbeaten Bruins

Ty Dieffenbach has gone from third-string to starting quarterback for undefeated UCLA, leading the 12th-ranked Bruins to a 17-7 victory over Wisconsin. The 21-year-old completed 23 of 33 passes for 264 yards in his first start of the season. Bruins…