NBA. He also became the second player to be drafted from a D-League team to the NBA, after Mike Taylor in 2008. Shortly after being drafted by the Heat, his draft rights were traded to the Oklahoma City Thunder, the NBA team affiliated with the Tulsa 66ers, in exchange for a future second-round pick. He played for the Thunder in the 2010 Orlando Summer League. He played in all five games, averaging 3.2 points and 2.6 rebounds in 13.0 minutes per game. His best game came during the win against the Philadelphia 76ers when he scored 10 points, with 5 rebounds, and 3 blocked shots in 15 minutes off the bench. However, he didn't receive a contract offer or an invitation to the Thunder's training camp for the 2010–11 season. On October 31, 2010, the Tulsa 66ers announced that Williams would be returning to the team for the 2010–11 season. His rights in the NBA were still held by the Thunder. He went on to average 13.2 points and 8.6 rebounds in 41 games. 2011–12 season On August 23, 2011, Williams signed a one-year contract with Spanish team FIATC Joventut. At the end of the regular season, he earned Most Spectacular Player honors. Williams was also candidate for the ACB Rising Star Award after averaging 9.6 points and 7.1 rebounds. 2012–13 season In July 2012, Williams re-joined the Oklahoma City Thunder for the 2012 NBA Summer League. He then joined Metros de Santiago of the Dominican Republic for s short stint before signing a two-month contract with German League and EuroLeague team Brose Baskets on October 4. His contract was not extended after it ended in December 2012. He then signed with Cajasol Sevilla of Spain for the rest of the season. 2013–14 season Williams returned to Cajasol Sevilla for the 2013–14 season but last just 10 games before being released in January 2014. 2014–15 season After serving out another short stint with Metros de Santiago, Williams signed with Bilbao Basket of Spain for the 2014–15 ACB season on August 29. On June 4, 2015, he signed with Vaqueros de Bayamón of Puerto Rico for the rest of the 2015 BSN season. 2015–16 season On July 20, 2015, Williams signed a one-year deal with UNICS Kazan of Russia. 2016–17 season On June 16, 2016, Williams re-signed with UNICS for one more season. On June 2, 2017, he signed with Bucaneros