Oklahoma City’s size looked like a playoff advantage for most of the year. In this series, it has started giving San Antonio a defensive map.
The pairing of Chet Holmgren and Isaiah Hartenstein still gives the Thunder length, rebounding and rim protection. The problem is that Victor Wembanyama has turned that combination into an offensive traffic jam.
That issue fully surfaced in Oklahoma City’s 103-82 Game 4 loss, where the Thunder produced their lowest scoring playoff game of the season while repeatedly struggling to create clean driving lanes.
The Spurs are not simply defending Oklahoma City anymore. They are manipulating where Wembanyama gets to live on the floor.
Wembanyama is functioning like a free safety
San Antonio has increasingly used Wembanyama as a roaming helper, especially when Hartenstein is on the floor.
That is the entire geometry problem.
When Hartenstein drifts above the break or operates as a non-shooting screener, Wembanyama can sag toward the lane without paying a clean defensive penalty somewhere else.
That lets him do two jobs at once.
He can sit directly in Shai Gilgeous-Alexander’s driving path while still recovering toward the rim if Holmgren cuts or slips behind the play.
ESPN described Wembanyama’s defensive role as more of an off-ball rover than a traditional matchup assignment, and Oklahoma City has struggled to punish it consistently.
The Thunder offense completely collapsed in Game 4
The numbers from Game 4 explain how badly the spacing issue spiraled.
Oklahoma City finished with:
- 82 points
- 33% shooting
- 18.2% from three
- 20 turnovers
It was the Thunder’s worst offensive performance in years.
And much of it looked structurally familiar.
The Thunder kept driving into a crowded middle while San Antonio calmly rotated around Wembanyama’s length.
Shai Gilgeous-Alexander admitted afterward: “They punched us in our face early.”
Holmgren was even more direct.
“They played like their season was on the line, and we didn’t,” Holmgren said.
The two-big lineup is no longer functioning cleanly enough offensively
This is not really about whether Holmgren and Hartenstein can coexist.
It is about whether Oklahoma City can afford to let Wembanyama defend this comfortably.
The more revealing numbers come when the lineup splits apart.
Oklahoma City has posted roughly a +15.4 net rating with Holmgren playing without Hartenstein and a +17.0 mark with Hartenstein anchoring solo lineups.
That matters because it suggests the issue is not either player individually.
It is the spacing cost of playing both directly into Wembanyama’s preferred defensive role.
Game 5 may hinge on forcing Wembanyama to guard honestly
The simplest adjustment is not abandoning size entirely.
It is staggering it more carefully.
If Mark Daigneault can keep one big on the floor while spacing the other minutes apart, Oklahoma City can recover some of the width and pace its offense needs.
Smaller lineups would also force Wembanyama farther from the paint instead of letting him park as a free-roaming helper waiting for drivers.
That changes the geometry for Gilgeous-Alexander immediately.
The Thunder still need rebounding and rim protection in this series. They just cannot keep giving San Antonio a version of the matchup where Wembanyama gets to defend everywhere at once.
Right now, Oklahoma City’s biggest lineup is making Victor Wembanyama’s job too easy. That is the problem the Thunder have to solve before anything else in Game 5.
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