The Dallas Cowboys signed veteran linebacker Von Miller after their first preseason game against the Seattle Seahawks, and it didn't take long until he was in Oxnard at training camp in full team gear.Fans at training camp got a brief glimpse of Miller doing drills off to the side in his first day with the team, but the turnaround after signing was too quick for him to see any live action in the joint practice with the New Orleans Saints. However, it didn't take long for Miller to get up to speed, as he joined the Cowboys defense during team period on Thursday. He even got pressure on the quarterback after getting past offensive tackle Terence Steele, per reports from Nick Harris of the Fort Worth-Star Telegram.The Cowboys have already seen what Miller is capable of on the field, but he's making sure his presence off the field is just as impactful. Von Miller Acting as Cowboys Unofficial Pass Rush CoachWashington Commanders outside linebacker Von Miller (24) speaks with the media after practice on day two of training camp at OrthoVirginia Training Center at Commanders Park. | IMAGN IMAGES via Reuters ConnectThough Miller and many others didn't suit up for Saturday's second preseason game against the Arizona Cardinals, the two-time Super Bowl champion was on the sideline putting his coaching hat on.With Dallas already up big in the third quarter, cameras caught Miller giving some tips to Cowboys rookie linebacker Malachi Lawrence. — Joseph Hoyt (@JoeJHoyt) August 23, 2026This is only the start of Miller's impact on the Dallas defense.Once the season begins, he will be able to dive deeper into the film with Lawrence and many others. The Cowboys will be better because of it, both this season and beyond. Von Miller is Comfortable With Spreading His KnowledgeHe might still be an active NFL player, but Miller has no shortage of comfort when it comes to coaching up other pass rushers at both the college and NFL level.Miller has held his annual "Sack Summit" camp in Las Vegas since 2017 when he was with the Denver Broncos. Over the years, some of the NFL's best players have come to learn from him while also sharing thier own knowledge, including Aaron Donald, Maxx Crosby, Calais Campbell, Cameron Jordan, DeMarcus Ware, Josh Hines-Allen and many more.The latest edition of the event also featured three current Cowboys, as Quinnen Williams, Rashan Gary and Donovan Ezeiruaku all stopped by to learn from Miller.A little over a month later, Miller became their newest teammate. Now they won't have to go all the way to Las Vegas to learn from one of the best pass rushers in NFL history.—Sign up for the Cowboys Daily Digest newsletterfor more free coverage from Dallas Cowboys on SI—Add us as a preferred source on GoogleFollow