NFL Media Insider Ian Rapoport reports that the deal is for $20.5 million with $8.4 million in guarantees, per a source who has seen the contract.
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"We are excited to announce that Zach will stay with us into the future," general manager Mickey Loomis said in a statement. "Not only has he done an excellent job at the right tackle position, but he has served us well as an offensive team captain for the past two seasons and has always been a great asset in the community since he first came here in 2006."