Khalil Mack will apply to wear the “shredder” face mask May 16, 2014 by Paul Jackiewicz 3 Comments Raiders rookie linebacker Khalil Mack plans on applying with the NFL to wear the “shredder” face mask that Justin Tuck wears. Khalil Mack said he'll apply for Justin Tuck "Shredder" face mask. Said it prevents face mask from getting pulled. Makes sense. — Scott Bair (@BairCSN) May 17, 2014 Mask wore the mask in college as you can see in the photo above.