The Celtics  and former Louisville  star Terrence Williams, the No. 11 overall pick in the 2009 NBA draft, agreed to what’s believed to be a 10-day contract, according to The Boston Globe’s Gary Washburn.
Terrence Williams signing is a done deal according to #celtics  source
— gary washburn (@GwashNBAGlobe) February 18, 2013 
The 6-foot-6, 220-pound wing averaged 17.9 points (47.9 FG%, 42.3 3P%, 71.7 FT%), 4.1 assists, 3.4 rebounds and 1.2 steals in just 27.0 minutes a night over 29 games in the Chinese Basketball Association for the first-place Guangdong Southern Tigers prior to being unceremoniously replaced  by Donald Sloan on Friday two games before the CBA playoffs. Williams averaged 7.6 points (40.4 FG%, 31.5 3P%, 68.2 FT%), 3.9 rebounds and 2.5 assists in 129 games over three seasons for the Nets , Rockets and Kings.
Once dubbed “a freakish athlete ” by Louisville coach Rick Pitino , Williams played his prep career in Seattle, where Celtics guards Avery Bradley  and Jason Terry  have strong ties. T-Will chronicled his basketball journey in a web series titled “Poor Hungry Driven .”
The Celtics begin a five-game West Coast road trip on Tuesday against the Nuggets. They had just 10 healthy players on the roster after season-ending injuries to Rajon Rondo , Jared Sullinger and Leandro Barbosa . Williams is expected to join the team in Denver, according to Washburn.
Celtics coach Doc Rivers  hinted at such a deal over the past week. He and team president Danny Ainge agreed last week that they would rather sign the best available player than somebody who fills a need at a certain position (i.e., a point guard or a big), and Williams fits that bill. Likewise, Rivers said on Friday the C’s were looking at possibilities in the Chinese Basketball Association, and later that day Williams became available. Coincidence?