Oklahoma City Thunder Kick Off Championship Defense with Nail-Biting Double Overtime Triumph

The Thunder's star player delivered the game-winning baskets late in double overtime as the defending champions started their NBA title defense with a 125-124 win over the visiting Rockets.

Last season's MVP poured in 35 points, featuring two clutch free throws with just 2.3 seconds remaining in double OT, securing the champions a winning beginning.

The Rockets' big man top-scored with 39 points and also connected on a career-high five three-pointers.

But the Thunder's rookie, who contributed 28 points, played a major role together with the game's hero.

"Grit and defence," Gilgeous-Alexander said of their showing. "We know that when we execute on defence we give ourselves a opportunity no matter what's going on—shots, missed attempts, good luck or misfortune. We did enough defence to secure the victory. We're still shaking off rust, but it's a good start."

Prior to the game, Oklahoma's title banner was unveiled at their arena, while the squad were presented with their title rings.

The Thunder beat the Indiana Pacers in the previous season's championship series. It was their maiden championship since the team moved in 2008 to Oklahoma City from Seattle, who had claimed the 1979 crown.

The Pacers will have the opportunity to secure some early revenge on Friday when they host Oklahoma, while the Houston are back on court on the same day at the Detroit Pistons.

In other action, a massive effort of 43 points, 12 boards and nine assists from the Slovenian star was insufficient to prevent his new team the Lakers from falling to a 119-109 loss against the Warriors.

Miami's star picked up 31 points and Golden State's sharpshooter added 23 for the road team.

Los Angeles were missing the NBA's all-time leading scorer LeBron James as he recovers from a back issue.