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 – The Oklahoma City Thunder has signed forward/center Jaylin Williams to a multi-year contract extension, it was announced today by Executive Vice President and General Manager Sam Presti.

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