"I would love to play until I'm 40," Williams recently said from 49ers minicamp. "I would love to make it into that special group. But if it's not in my cards, it's not in my card

Retirement has always been a question associated with the left tackle, even if he himself hasn’t seriously considered the idea yet.

For now, San Francisco 49ers offensive tackle Trent Williams doesn't know when he's going to retire, and he pretty much plans to keep playing until the wheels fall off.