If the San Francisco 49ers had found a way to acquire Trent Williams in a trade last season, he might have found himself playing guard.

San Francisco looked into trading with Washington for Williams last season when both starting tackles Joe Staley and Mike McGlinchey were sidelined with injuries.

"We had made a call about it in the last season when Joe and McGlinchey were hurt, thinking, wow, this could be an option," John Lynch said. "When those guys come back, maybe we play him at guard."