The Dallas Mavericks signed swingman Kelenna Azubuike to fill the roster spot vacated by Thursday's release of Sean Williams.

Although Azubuike hasn't played since early in the 2009-10 season because of a knee injury, Mavericks officials are intrigued by the progress Azubuike has made in his rehabilitation efforts, sources said.

Azubuike will receive a deal for the rest of this season and a team option for next season, sources said. He will start his comeback with the Frisco-based Texas Legends, Dallas' D-League affiliate. He is expected to practice with the Legends on Friday and could play for them as early as Saturday night against the Reno Bighorns at home, sources said.