UCLA linebacker Aaron Wallace first won a starting spot in 2013 as a redshirt sophomore — then promptly lost it to the freshman sensation that was Myles Jack. A year later, he started another game, but otherwise spent the year as a backup.

This season, the senior has five starts and a team-high four sacks, including 2.5 in last Thursday’s win over Cal. No other Bruin has more than two this season.

Asked what the biggest difference has been, Wallace said: “My confidence. When I’m up there, I feel more comfortable. I’m not second-guessing myself. I’m just playing fast.”