UCLA's defense came up big in a 31-26 win over Arizona on Saturday night in Tucson.
Linebacker Myles Jack, performing out of an offensive set UCLA put in just this week because of injuries, gained 120 yards in six carries, including a 66-yard touchdown run in the fourth quarter that provided the Bruins with their margin of victory.
With backs Jordon James, Steven Manfro and Damien Thigpen all unavailable because of injuries -- Thigpen played Saturday but was sidelines most of the second half -- UCLA employed a three-back set that included Jack and fellow linebacker Jordan Zumwalt.
Zumwalt didn't get a carry, but he had a key 12-yard pass reception on a Bruins scoring drive.
Jack also made eight tackles and recovered a fumble in the end zone that was forced by Zumwalt.
That play -- midway through the third quarter -- also could have been the difference in victory or defeat for the Bruins.
Arizona did not score a touchdown in four possessions inside the UCLA 10. The Wildcats were stopped once on downs, Ka'Deem Carey fumbled into the end zone inside the one-yard line, and Arizona was held to field goals on two other occasions.
With all that, though, UCLA's win was not secured until Ishmael Adams picked off a desperation fourth-down pass by Arizona's B.J. Denker deep in UCLA territory with two minutes to play.
The Bruins then ran out the clock.
The win kept UCLA in the hunt in the Pac-12 Conference's South Division. UCLA is 7-2 overall, 4-2 in conference play, and are one game back of Arizona State, which rallied to defeat Utah on Saturday.
UCLA is tied with USC, which rolled past California to improve to 7-3 overall, 4-2 in the Pac-12.
Arizona fell to 6-3 overall, 3-3 in conference play.
Brett Hundley completed 18 of 25 passes for 227 yards and two touchdowns -- both to Shaquelle Evans, who had four catches for 97 yards.
Denker completed 20 of 33 passes for 186 yards and two touchdowns for Arizona. The Wildcats also got 148 yards rushing in 28 carries from Ka'Deem Carey, the nation's leading rusher.
Brett Hundley is sacked trying to get away a third-and-four pass, and after a punt Arizona takes over at its own 12 with 2:33 left in regulation.
UCLA's defense holds and Bruins have the ball back at their own 15 with 4:57 left in regulation.