The NBA held its annual version of musical chairs, with a flurry of moves in the hours just before Thursday's trade deadline.
The Boston Celtics agreed to acquire forward Jeff Green and big man Nenad Krstic from the Oklahoma City Thunder, in exchange for center Kendrick Perkins and backup guard Nate Robinson, the Boston Globe reported.
"It's a difficult time when you see one of your good friends and teammates go," Celtics captain Paul Pierce said. "You're happy when things don't happen and the deadline passes."
In Green, the Celtics sought a versatile perimeter player to replace swingman Marquis Daniels, who was shipped to the Sacramento Kings for cash in a separate deal, the Boston Herald reported. Daniels has been sidelined since Feb. 6 with a bruised spine that may require off-season surgery.
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Green was the fifth overall pick in the 2007 draft by Boston but was traded to the Seattle SuperSonics in the deal that brought over Ray Allen. Green is averaging 15.2 points and 5.6 rebounds in his third season with the Thunder.
The Celtics weren't finished dealing, though. In a separate move, they sent rookie big men backups Luke Harangody and Semih Erden to the lowly Cleveland Cavaliers.
Other deals Thursday:
■ In an effort to clear salary space, the Bobcats dealt former All-Star forward Gerald Wallace, averaging 15.6 points and 8.2 rebounds, to the Portland Trail Blazers in exchange for seldom-used center Joel Przybilla, backup forward Dante Cunningham and two first-round draft picks. The Bobcats also sent backup center Nazr Mohammed, a former Wildcat, to Oklahoma City for reserve forward D.J. White and the expiring contract of guard Morris Peterson.
■ In what amounts to a swap of point guards, the Los Angeles Clippers shipped Baron Davis (12.8 points and 7 assists) along with their 2011 first-round draft pick to the league-worst Cavaliers in exchange for Mo Williams (13.3 points and 7.1 assists) and reserve forward Jamario Moon.
■ The Houston Rockets shook up their roster with a pair of separate deals, sending unhappy backup point guard Aaron Brooks (11.6 points and 3.8 assists) to the Phoenix Suns for reserve guard Goran Dragic (7.4 points and 3.1 assists). The Rockets also sent veteran forward Shane Battier (8.6 points and 4.8 rebounds) back to Memphis in exchange for center Hasheem Thabeet. The 7-foot-3 Thabeet has been a bust, averaging 1.2 points and 1.7 rebounds since being selected second overall in the 2009 draft.
The Rockets also get first-round draft picks from both teams.
Around the league
Nets: Deron Williams isn't going to make a decision on whether to opt out of his contract with New Jersey until next season. The All-Star point guard is scheduled to make $17.7 million in 2012-13, but he can walk away from that deal after next season.
"I can't really give any assurances or say that I'll be here when I don't know what the future holds," Williams said.
Kings: In the latest and perhaps strongest signal yet that the Kings are considering a new home, the franchise filed a request Thursday for an extension on the NBA's March 1 deadline to inform the league if they intend to seek permission to relocate next season. "We're going to fight. The deal is not done," Sacramento mayor and former NBA player Kevin Johnson said.
Bulls 93, Heat 89: Derrick Rose scored 26 points and Luol Deng added 20, including the tie-breaking three, and host Chicago beat Miami in a wild showdown between two of the Eastern Conference's top teams.
In a game that could have playoff seeding implications, the Bulls used a big third quarter to turn a nine-point halftime lead into a 71-67 advantage, then watched a nine-point lead in the fourth evaporate into a four-point deficit before pulling it out.
Deng's three-pointer with 16 seconds left broke an 89-all tie and sent Chicago to its 16th win in 21 games.
Dwyane Wade scored 34 points and LeBron James added 29 for Miami, which lost for only the second time in 13 games. Both players badly missed three-point attempts in the final minute.