The announced Friday that they have signed former USC defensive lineman , who was selected with Zack Greinke Jersey the sixth overall pick in last week's draft. The now have their entire 2015 draft cla s under contract.Williams has been praised as perhaps the best player in his cla s, and his slip to the sixth pick was seen as a stroke of fortuity for the perpetually star-cro sed . NFL Media Insider Ian Rapoport reported that Williams may have dipped in the first round due to a shoulder injury discovered during the pre-draft proce s.", from all the guys I've seen so far, has been the most dominating player," said before the draft. "Everything you want -- the size, the length, the explosivene s, the versatility. You can play him all over the line on defense. He reminds me a lot of Richard Seymour. That's pretty good company to keep."The 6-foot-5, 302-pound Williams will join , and Damon "Snacks" Harrison on a defensive line expected to be one of the NFL's best in 2015.The have invested seven first-round picks in defensive players over the past six years. The last offensive player to go in the first round? That would be quarterback , who went fifth overall in 2009.The latest Podcast and discu ses the current state of all 16 NFC teams. Find more content on .* Diego Hernandez Jersey