By W.G. RAMIREZJuly 27, 2021 GMT LAS VEGAS (AP) — The Las Vegas Raiders had one of the worst defensive units in the NFL last season, including a beleaguered secondary that was regularly torched due to growing pains with a young corps. Problem is, the pass coverage has been an issue since Jon Gruden returned as coach in 2018, with the Raiders allowing 12,172 yards through the air, eighth most in the NFL. They’ve also given up 97 touchdowns, the second-most total in that span. And they’ve registered just 33 interceptions, tied for 25th. But you wouldn’t know any of that is a concern Tuesday, when Gruden met with reporters in person for the first time since before the pandemic, as players reported for training camp.