Williams is expected to be among the reserve options for the back end of their offensive line in the 2015 season.
The former tight end struggled initially to adjust to his new role as a tackle, but he's improved drastically and he along with his coaches have taken notice.
"I remember how out of place I felt," said Williams, who moved from tight end to offensive tackle last offseason. "But now I feel like I'm at the right position. I feel like I'm in place. I feel like I'm impressing coaches, and impressing myself."
Williams spent last season as a member of the Lions' practice squad.
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