Oakland Raiders defensive end Khalil Mack didn't report to the start of the three-day mandatory mini-camp in Alameda, CA on Tuesday, June 12, 2018.
Oakland Raiders defensive end Khalil Mack didn't report to the start of the three-day mandatory mini-camp in Alameda, CA on Tuesday, June 12, 2018. Eric Risberg AP
Oakland Raiders defensive end Khalil Mack didn't report to the start of the three-day mandatory mini-camp in Alameda, CA on Tuesday, June 12, 2018. Eric Risberg AP

Raiders' Khalil Mack didn't report to mandatory mini-camp. What did Jon Gruden say?

June 12, 2018 07:28 PM