Oklahoma City is once again on course to overachieve. It sounds hard to fathom coming off of a 55+ win campaign, a No. 1 seed clinched, and a first round sweep.

The Oklahoma City Thunder fell 121-115 to the Dallas Mavericks Thursday night, losing at home for the first time since Nov.

The Dallas Mavericks will play their fourth and final matchup of the season against the Oklahoma City Thunder on Thursday, ...

Spencer Dinwiddie scored 28 points, and the Dallas Mavericks beat the Oklahoma City Thunder 121-115 on Thursday night.

James Harden, sidelined and still as bearded as ever, looked on as this iteration of the Thunder accomplished something his — or any of those before or after — never did. Oklahoma City ... between ...