Collison hit eight of his nine shots and had five of his seven rebounds on the offensive end.

"He came in at the right time. We needed that spark, that energy and he came in, took a few charges, got some putbacks. He helped us out," Jeff Green said. "He was that spark that got us over the top."

Philadelphia had been within 96-91 after Jason Kapono's 3-pointer with 7:57 to play, but Mike Wilks answered at the other end and the Thunder kept pulling away. It was the second-largest margin of defeat in the Sixers' current slide. Five of the losses have been by six points or less.

"We're close. We're always like hanging in at the end, and there's a breaking point where we always tend to go backwards instead of pushing through," Kapono said.

The 76ers announced earlier in the day that Iverson would be ending a brief retirement to return to the team he led to the NBA finals eight years earlier. Iverson isn't expected to join the Sixers until Monday, when they begin a five-game homestand, their longest of the season.

On Saturday, they'll complete a stretch playing seven out of eight games on the road. They're 0-7 so far. The last time the Sixers had lost more than seven games in a row was a 12-game skid in November and December 2006.

"He's a proven scorer, a winner, the toughest guy in the league. He's an asset and he's going to be a positive light for us," Kapono said. "We need to take care of our last game here. Hopefully we can get a win in Charlotte and then go back home, add him and go from there."

NOTES: Oklahoma City is 8-0 when scoring at least 100 points. ... The teams combined to hit their first eight 3-pointers, five by Philadelphia and three by Oklahoma City. ... Former Dallas Cowboys defensive lineman Leon Lett was in attendance. ... Durant's scoring total left him seven points short of 4,000 in his career. He would be the second-youngest player to reach that mark, behind only LeBron James.