James Anderson will sign with the Houston Rockets on Sunday, according to league sources.

Anderson, 23, played 10 games with the San Antonio Spurs this season and has spent all three years of his NBA career with the organization.

The Cleveland Cavaliers have claimed Shaun Livingston off waivers from the Washington Wizards and Donald Sloan.

The Cavaliers rosters now stands at 15.

Livingston, 27, has appeared in 17 games (four starts) for the Wizards, averaging 3.7 points, 2.2 rebounds and 2.2 assists in 18.8 minutes per game.

The Boston Celtics have signed Jarvis Varnado.

Boston has been thin in the frontcourt.

Varnado was the 41st overall pick in the 2010 NBA Draft by the Miami Heat, but never played a game with the franchise.

The Boston Celtics will sign Jarvis Varnado of the NBA D-League's Sioux Falls on Monday, according to a league source.

The 6-foot-9 Varnado has averaged 14 points, 8.9 rebounds and 4.4 blocks with Sioux Falls.

Doc Rivers admitted on Sunday that the Celtics would look to sign a big man given the loss of Chris Wilcox, who could miss one month with a sprained ligament in his left thumb.

Chris Wilcox could miss one month with a sprained ligament in his right thumb, according to Doc Rivers.

Wilcox had been a solid contributor for the Boston Celtics this season, but he suffered the injury in Tuesday's loss to the Chicago Bulls.

"Chris is out; he's out for a while," Rivers said. "I don't know how long (but) the first report I got was three to four weeks. He'll be out."

The Celtics could now look to sign a free agent big man, which Rivers admitted.

"You would think (we would sign someone)," Rivers said. "But obviously that's the one position where they don't grow on trees. We just have to be patient. Obviously we need another big (man) with Chris being out. I don't know if we're going to get another big on this (four-game) trip."

The Washington Wizards will sign Shelvin Mack to a contract, according to sources.

The Wizards selected Mack with the 34th overall pick of the 2011 NBA Draft and waived him before the start of the current season.

Mack had been playing in the D-League.

The Wizards released Shaun Livington to create space to sign Mack.

The Washington Wizards have waived Shaun Livingston and Earl Barron.

The Wizards will now look for backcourt help, according to the Washington Post.

Livingston averaged 3.8 points in 16 games for the Wizards while Barron averaged 2.5 points and 3.9 rebounds in 11 contests.

The Los Angeles Lakers elected to pass on signing Delonte West due to concerns about how his presence would possibly further destabilize an already complicated situation, according to sources.

West was strongly considered during the Lakers' 1-6 start to December, but ultimately decided the safer option was to wait for Steve Nash to return.

Sources say the Lakers could still bring in another point guard.

In an effort to return to the NBA, Mickael Gelabale has informed all 30 teams about his interest in signing with an organization between now and Jan. 30, agent Bill McCandless told RealGM on Friday afternoon.

Gelabale’s agency reached out to all teams through email, and it is confident that someone will seriously consider acquiring Gelabale in January.

“He’s better than [Chris] Douglas-Roberts or any D-Leaguer in my opinion,” McCandless said.

After his contract with Croatian club Cedevita ended late last week, Gelabale moved to Valencia of the ACB – where he holds an opt-out clause to leave to the NBA by Jan. 30.

Gelabale, whose offensive efficiency ranks second in the EuroLeague, scored 11 points in 22 minutes in his first game with Valencia against Real Madrid. At 6-foot-7, Gelabale also provides defensive versatility.

The Minnesota Timberwolves could pursue Gelabale, but they are not likely to sign a wing player until after Dec. 25, a league source said.

Gelabale, 29, spent two seasons with the Seattle SuperSonics after being selected in the second round of the 2005 NBA draft, averaging 4.5 points on 45 percent shooting in 109 games.

The New Orleans Hornets have signed forward Dominic McGuire. 

McGuire, a Fresno State University product, appeared in 15 regular season games (nine starts) with the Toronto Raptors this season before being waived on Nov. 30.

McGuire averaged 2.1 points, 3.2 rebounds in 15.3 minutes of play with the Raptors.