Niners LT Trent Williams on goal of playing till he's 40: 'Not going to retire with something left on the table'

Via: NFL.com

San Francisco 49ers left tackle Trent Williams is one player who will be returning for the Niners after an offseason of change, and the 36-year-old said.....

Note: The content at the destination link is not affiliated with or endorsed by 49ers Webzone.