The NBA Cup quarterfinals concluded Wednesday with two big Western Conference clashes. The Oklahoma City Thunder crushed the Phoenix Suns and the San Antonio Spurs upset the Los Angeles Lakers. Both matches showed where each team stands as the tournament heads into the semifinals. One team proved its dominance, while another showed how quickly a young group can grow.
Oklahoma City Thunder against Phoenix Suns (138-89)

Winner: Oklahoma City Thunder (Ranking: 24-1)
Oklahoma City entered the night with the best record in the league (23-1), and they looked even stronger after their 138-89 victory. They improved to 24-1, tying the best 25-game start in NBA history, matching the 2015-16 Warriors. Their 49-point victory is the largest margin victory this season.
The Thunder dominated in all areas. Their defense shut down Phoenix immediately and their offense continued to score in waves. It was their fifth victory by 30 points or more this season. They also extended their winning streak to 16 games, the longest in team history. The gap between them and the Suns seemed huge.
Loser: Phoenix Suns (Ranking: 14-11)
Phoenix got to 14-11 and shorthanded. They struggled from the start. Their offense couldn’t create good shots and their defense had no answers for the Thunder. The game was virtually over at halftime. The Suns want to compete in the West, but this loss showed how far behind the top teams they currently are.
San Antonio Spurs against Los Angeles Lakers (132-119)

Winner: San Antonio Spurs (Ranking: 17-7)
The Spurs played their best offensive game of the season, beating the Lakers 132-119 and improving to 17-7. They scored 39 points in the first quarter and stayed hot throughout the game, shooting 50%, making 17 threes and hitting 29 of 36 free throws. The team also protected the ball well with only 10 turnovers and scored 27 fast break points.
Stephon Castle was the star of the evening. The 21-year-old guard had 30 points, 10 rebounds and 6 assists while shooting 10 of 14. He recently returned from a hip injury but looked completely ready. Only Tim Duncan and Victor Wembanyama had posted similar numbers at his age in Spurs history. His performance showed that he plays an important role in the team’s future.
Loser: Los Angeles Lakers (Ranking: 17-7)
The Lakers came in with a subpar defense, and it shows. They struggled to guard San Antonio’s drives and collapsed in transition. One game even ended with an open dunk by Harrison Barnes because the Lakers stopped defending.
Their offense is elite with Luka Doncic, LeBron James and Austin Reaves, but their defense continues to hold them back. This loss highlighted the weaknesses they need to address if they want to compete for a title.
Conclusion
Wednesday’s matches clearly showed which teams are in good form. The Thunder appear ready to aim for another championship, and the Spurs look like a young team that is growing quickly and believing in itself. On the other hand, the Suns and the Lakers now have a lot to sort out.
Then, the semifinals will pit Knicks against Magic and Spurs against Thunder.
