The Oklahoma City Thunder have signed reserve big man Jaylin Williams to a multi-year extension. The team announced the move Sunday.

The NBA champion Oklahoma City Thunder have taken the first step toward keeping their roster together, agreeing with center/forward Jaylin Williams on a multi-year contract extension on the big man's 23rd birthday.

Oklahoma City Thunder center Jaylin Williams is signing a three-year contract extension worth $24 million, according to ESPN. Getting Williams a solid extension is another step towards securing the team's NBA championship core;