Follow along with a wild night in the NBA, headlined by a clash between the Oklahoma City Thunder and San Antonio Spurs.

The Phoenix Suns and Golden State Warriors have split their first two meetings this season. They meet for the third time on Dec. 20, 2025.

Returning Victor Wembanyama inspired San Antonio, snapping OKC’s undefeated run and setting up a captivating climax on Tuesday

Follow along with live updates around NBA action on Sunday Dec. 21 with key games, moments and highlights from 6-game schedule.

What to Know Tune in to NBC Sports Boston before the game at 6 p.m. ET for Celtics Pregame Live and immediately after the game for Celtics Postgame Live. The Celtics and Lakers write a new chapter in the NBA’s best rivalry.

The Phoenix Suns will look to bounce back from their worst defeat in franchise history when they face the Los Angeles Lakers on Dec. 14 at Mortgage Matchup Center. The 6 p.m. MST game is being televised on Arizona's Family Sports (3TV).

It was quite the return, as Wembanyama’s 22 points helped the Spurs push past the Oklahoma City Thunder to move into the NBA Cup final. The game announced the Spurs as legitimate contenders, and set up a potential rivalry in the Western Conference that could dominate the NBA for years to come.

New York rallied from an 11-point second-half deficit to beat San Antonio 124-113 in the NBA Cup championship game. The Knicks outscored the Spurs 35-19 in the fourth quarter and held a 67-56 rebounding edge.

The San Antonio Spurs changed Victor Wembanyama's injury status ahead of their Dec. 23 game vs. the Oklahoma City Thunder. Here's the latest on Wemby: