San Antonio beat Oklahoma City four times in the regular season, but the Western Conference finals open with a different problem than the one those matchups presented. The Thunder’s reserves own a plus-7.8 net rating in the playoffs, and the offense has actually been slightly more efficient with Shai Gilgeous-Alexander off the floor than on it. That is the structural issue the Spurs have to solve before any individual matchup gets comfortable.
This is not a normal star-and-bench setup
Most contenders survive their non-star minutes. Oklahoma City has turned those stretches into another advantage. The Thunder have played 10 guys at least 10 minutes per game in the playoffs, and even with Jalen Williams missing time, the second unit keeps moving with almost no drop in pace or purpose.
That changes the series math. San Antonio cannot simply win the Shai-on-the-bench segments and hope that carries the night. The Thunder have been too deep for that shortcut.
The names behind the numbers make it more dangerous
Ajay Mitchell is averaging 18.8 points, 4.9 assists and 4.0 rebounds in the playoffs. Cason Wallace and Jared McCain are both shooting better than 46 percent from 3. Isaiah Hartenstein is averaging 9.9 points and 8.8 rebounds while finishing 75.6 percent of his shots.
Those numbers matter because they come from different positions and different lineup types. Oklahoma City can beat a defense with extra ballhandling, with size, or with quick-trigger shooting. San Antonio has to read a new version of the same team every few minutes.
The on-off split tells the real story
The Thunder have scored 126.2 points per 100 possessions with Gilgeous-Alexander off the floor and 124.6 with him on it through eight playoff games. That is not an argument against Shai. It is a warning about how little rest the opponent gets.
When an offense remains this sharp without its primary star, every substitution becomes more stressful. San Antonio has to survive Gilgeous-Alexander, then survive a second wave that still passes, defends and shoots well enough to extend runs.
Victor Wembanyama still frames the series
Of course the matchup starts with Wembanyama. The Spurs score 118.3 points and allow 96.4 per 100 possessions with him on the floor in the postseason, and his rim protection changes every game. Oklahoma City will spend the series testing how much it can pull him into difficult decisions.
But that is exactly why the Thunder’s depth matters so much. They can keep sending spacing and screening at him even when the starters sit. The pressure does not reset just because the first unit rests.
San Antonio’s first task is surviving the full 48
The Spurs have enough length and defensive talent to bother the Thunder in stretches. They also had the second-best regular-season defense against Oklahoma City among all opponents. That gives this series real tension.
Still, the first thing San Antonio has to prove is that it can handle a game where Oklahoma City never really goes soft. The Thunder’s second unit is why this matchup feels different now, and it is why the regular-season edge is not the clean comfort blanket it looks like on paper.
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