: Outdoor practice fields: Shellshas the most experience, andhad the breakout performance in the spring game. But so far this preseason camp, the weakside defensive end with the first-team D line has been manned by sophomoreThat continued Thursday, as Jelks practiced again with tacklesandand strongside end. Jelks came on strong at the end of last season, highlighted by a two-sack performance against USC. But it might have been the work he put in this summer that was most crucial to earning him some first-team reps this week."We just tried to simulate a lot of stuff that might happen in game situations," Jelks said of the D line's summer workouts together. "We brought as many people as we could out there, and lined up and did stuff on our own. Coaches couldn't be there, so it was on us to get the job done. It definitely translated into camp."Jelks finished last season with three sacks among his nine tackles. He carries 260 pounds stretched out over his 6-foot-6 frame, and used his length a couple times Wednesday to knock down passes at the line.To thrive in the system of new coordinator– who is also now his position coach – Jelks will need to be stout against the run as well. He said he's worked on his hand placement, which is helpful for shedding blockers and getting to ballcarriers."Stuff like that really translates over to the game – hand placement, your footwork, your striking," Jelks said. "I think that was a big improvement for me, and I think that's helping me a lot."Jelks knows he can't get complacent. Prevot started five games last season at outside linebacker, and has 10 career sacks. Hollins had 10 tackles as a true freshman in 2014 before missing last season, but he returned to lead all players with eight tackles in this year's spring game."There's people chasing after the same position, so you've got to keep your foot on the pedal," Jelks said. "You might be fatigued during practice, you might be tired – I was throwing up earlier – but that doesn't mean you stop. You've just got to keep fighting.": After a couple of pretty clean days Tuesday and Wednesday, the offense turned it over a few more times Thursday.picked off apass in the first 11-on-11 period, andhad interceptions on back-to-back reps in 7-on-7.Defenders also were able to put to use the fumble recovery skills they drilled Wednesday.jumped on a muffed pitch in a full team situation, andfell on a loose ball in the same period.In the final team period,zipped a nice ball down the seam to. On the next play,picked up a blitzing defender, giving Jonsen time to complete another ball toadded a tackle for loss ofin that period, a rare instance of Griffin being wrapped up by one guy.There was good back-and-forth in 1-on-1 pass drills early in practice. Benoit andhad nice receptions on deep balls, anduncorked a beautiful touch pass well down the field thathauled in. Brown didn't have as much success on this rep against: Former UO receiver and NFL veteran Jeff Maehl attended practice and addressed the team afterward.Maehl's message to the Ducks boiled down to, embrace the experience, take advantage of the resources Oregon provides and, "if you take one thing away, get your education." … Strength coachhas returned to Eugene after spending several days in Brazil, whereand two sprinters from the UO women's track and field team are training for the start of Olympic competition this weekend. …has been far and away the team's most consistent center through four days.Here'sworking on his reaction time and hand speed with linebackers coachAnd here's Jonsen working on getting the ball out quick during position drills:Head coachFYI, here's what prompted the invitation Helfrich extended to Larry David at the opening of his interview session.