The deal, negotiated by Pensack Sports, is a remarkable punctuation for an undrafted player who had no Division I scholarship offers out of high school.
Williams has often told people that he hopes to someday retire with the Thunder, and so far, he's distinguished himself in four NBA seasons as an versatile defender and floor spacer. With the new deal, which begins in the 2023-24 season, Williams has the opportunity to solidify himself with Oklahoma City's burgeoning young core of talent.
Williams, 27, averaged 7.4 points, 4.5 rebounds and 2.2 assists in 22 minutes a game in 2021-22. He spent his first two NBA seasons with the New Orleans Pelicans before landing with the Thunder for the 2019-20 season.
The Thunder signed another undrafted young player to an extension this offseason: guard Luguentz Dort on a five-year, $82.5 million deal.