Thunder forward Kevin Durant will miss up to two weeks after spraining his ankle against the Mavericks on Friday night.

He suffered the injury in the first quarter and after trying to play through it, left the court for good a few minutes later.

Durant has a Grade II sprain, according to a team source. Team officials did reveal that X-rays on his right foot were negative.

The Cavaliers are in need of a veteran big man in the wake of Ben Wallace's leg injury, and Joe Smith appears to still be a possibility.

League sources indicated on Friday night that Smith's agent and the Thunder were discussing a buyout.

Oklahoma City coach Scott Brooks has made public comments against buying out Smith, who would have to be bought out by Sunday night in order to join the Cavaliers in time to be eligible for their playoff roster.

Thunder star Kevin Durant suffered what The Oklahoman has labeled a severely sprained right ankle against Dallas on Friday night, and it is unknown how long the dynamic scorer will be on the sidelines.

Durant used crutches and wore a protective boot on his right foot when leaving American Airlines Center. Team officials list him as day-to-day, but the injury was severe enough that team officials took an X-ray, which was negative.

"Kevin is a tough guy,? said teammate Jeff Green. "Hopefully, he doesn?t rush back too soon. We have some great trainers to help him get back quickly. We?ve just got to make up for him (being out).?

"I have no clue at this point (how long he?ll be out),? said Oklahoma City coach Scott Brooks.

The Oklahoma City Thunder attendance has been in the top half, but its television ratings have been disappointing. Fox Sports Oklahoma?s 1.3 average rating for Thunder telecasts is 41 percent less than Fox Sports Net?s national average of 2.2 for its 24 NBA franchises.

"As we continue to introduce people to our players, to our organization and to the league, we know those numbers will grow along with the growth of the team,? said Ken Adelson, Thunder senior vice president and executive producer.

In comparison, recent OU men?s basketball telecasts against Texas and Kansas earned 12.3 and 8.9 ratings, respectively, on ESPN.

The Phoenix Suns are not interested in signing Joe Smith, according to a source from the team.  Smith has not been released, but may be waived by Oklahoma City.

The Suns must add a player by March 9.

There is a March 1st deadline for teams to request waivers on players and still have them eligible for the playoffs.

Thunder coach Scott Brooks would prefer that the team holds onto veteran forward Joe Smith amid rumors that the organization could buyout his contract.

"I admire Joe Smith's professionalism, how he takes his time with our guys," Brooks said. "And he's a great veteran leader. I'm not concerned with the business side of it. I have to coach the guys that we have. That's going to be between (general manager) Sam (Presti) and (Smith's) agent. I don't know what's happening. I just know I like what Joe brings to this team. Joe's perfect for this team. He's been terrific for us."

Thabo Sefolosha made a splash in his first practice with the Thunder on Monday after catching Earl Watson with an elbow above the eye.

The incident occurred during a drive to the basket.

"Just like a little welcome, like, 'I'm out here,' " Sefolosha said jokingly.

The Celtics are looking to add veteran big man Mikki Moore, who the Kings released last week, and agent Mark Bartelstein says the defending champs have made an offer.

"A lot of teams are very excited about him, so it's a tough decision for Mikki," said Bartelstein.

Moore is expected to make his decision Monday after clearing waivers and becoming an unrestricted free agent.

Bryon Russell is interested in making a return to the NBA, and his agent has had conversations with the Celtics, 76ers, Thunder, and Suns.

Russell, who has been allowing a knee injury to heal, says that he's capable of playing 15-20 minutes a night.

"I want to help some playoff teams and get back into the game that I love," said Russell of playing in Boston. "I work out every day. The rust part can get worked out just by playing with the fellas. I wouldn't take away from The Big Three [in Boston]. I would love to play with them. I have nothing to prove. I want to lend a helping hand with the loss of [James ] Posey by playing defense, knocking down jump shots, and basically playing the role of a Posey. I got some life in these legs. Now that the [trade] deadline is over, I think people are looking to add a veteran on their squad. I'm hoping I can provide that."

Various media reports have tried to put Joe Smith in Boston and Los Angeles, but he is not seeking a buyout from the Oklahoma City Thunder.

"What for?? Smith asked Friday when asked about a potential buyout. "I?ve been here all year. Why would I want to do that now? I?m (not) seeking it.?