Raiders' Mack reveals the things that motivate him

Daily Raiders blog for NBC Bay Area website: Rookie linebacker Khalil Mack writes a story for Sports Illustrated's Monday Morning Quarterback that shows how motivated he is to make a big splash for Oakland in 2014. http://www.nbcbayarea.com/news/sports/Mack-Motivated-to-be-Among-NFLs-Best-266045361.html