The 49ers signed rookie cornerback Ahkello Witherspoon to a four-year contract on Friday, leaving only three members of their 10-man draft class unsigned.
They are: First-round picks Solomon Thomas and Reuben Foster as well as quarterback C.J. Beathard, who like Witherspoon was a third-round pick.
Witherspoon, 22, played only one season of high school football at Christian Brothers in Sacramento. But his combination of size and fast feet – which he acquired from playing soccer – caught the eye of Colorado coach Mike McIntyre.
Witherspoon played cornerback there the past two years and in 2016 led the nation with 22 pass breakups. He lined up at right cornerback in the 49ers' recent rookie minicamp and will compete with Rashard Robinson, Dontae Johnson, Will Redmond and others to start this season.
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