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

Ty Dieffenbach began the season as UCLA's third-string quarterback. He's running the show now for the 12th-ranked Bruins, the only undefeated team remaining in the Big Ten and Southeastern conferences.The 21-year-old was 23 of 33 for 264 yards with one sack and one interception in the Bruins' 17-7 victory over Wisconsin on Saturday night in his first start of the season. “What a warrior, all the way around,” Bruins coach Bob Chesney said. “To stand in there and have the confidence to do what he did, the third-down throws that he was able to make and see the game clean as can be, it was a really reassuring day.”Dieffenbach took over in the second half of last week's win at then-No. 13 Oregon after Nico Iamaleava injured his leg. He leapfrogged Maddon Iamaleava, Nico’s younger brother, on the depth chart.“We all were very confident in him and felt like he can have this type of game,” Chesney said. “He sees the game well, he throws a nice football, he's accurate, he's on time.”The Bruins