The 49ers selected Williams in the fourth round of the 2017 NFL Draft, 121st overall.
Williams is a strange case. After retiring three weeks into the 2016 season at Utah, he returned to the team in October and went berserk. In just seven games, he ran for 1,332 yards (7.1 YPC) and 10 touchdowns, showing skills he never had earlier in his career. At 5-foot-11, 210 pounds, Williams showed well at the Combine with a 4.41-second 40-yard dash and 125-inch broad jump. If Carlos Hyde's injury issues persist, Williams could find himself getting snaps as a rookie.