Oklahoma City is off to its best start ever and on a 15-game victory streak in clear sight of a deep postseason run.

The Thunder flexed its league-best defense to beat the defending champion Celtics 105-92 on Sunday afternoon in Oklahoma City.

The Celtics came out on the wrong end of a potential NBA Finals preview after a dominant second half by the Thunder.

It was a clash of titans—a showdown between the reigning champs and the best in the West. The post Celtics Fans Protest ...

The Thunder held the Celtics to 12 points in the fourth quarter and shut down Jaylen Brown in the second half to secure a statement win.