Bengals, Shawn Williams sign four-year contract extension through 2020

Shawn Williams will start for the Bengals in 2016.

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The Cincinnati Bengals have signed safety Shawn Williams to a four-year contract extension through 2020, the team announced.

The deal is worth $19.5 million with $4 million guaranteed, reports NFL.com's Ian Rapoport.

The Bengals will start Williams after letting Reggie Nelson sign with the Oakland Raiders. The team also signed George Iloka to a five-year, $30 million deal.

Williams has started four games in his career. He finished last season with 28 tackles and two interceptions.

Williams was about to start the final season of his rookie contract, which was signed after he was drafted in the third round of the 2013 NFL draft.

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Williams turned 25 years old earlier in the week.