The Las Vegas Raiders have now gone through a week of training camp practices and put on pads for a couple of sessions as well. As a supplement to our training camp tracker, here's what you should monitor ahead of the Raiders' preseason opener next week. Trey Zuhn III is DJ Glaze’s top challenger for the right tackle spotDJ Glaze has had his ups and downs in the first week of summer practices, though he's still the front-runner to start at right tackle. "The second-year defensive tackle has received plenty of first-team reps alongside Adam Butler and Jonah Laulu. He mentioned taking reps at SAM (strong-side linebacker), big end (strong-side defensive end) and 3-tech (defensive tackle in the B gap).