ESPN's Get Up devoted the top of Thursday's show to a chalk-talk on how Isaiah Hartenstein managed to slow Victor Wembanyama in Game 2 of the Western Conference Finals, an adjustment former NBA wing Iman Shumpert had been arguing for in production meetings since Game 1.
Shumpert and Brian Windhorst, who often disagree on tactics, agreed on the diagnosis. Windhorst framed the decision in terms of impact: Wembanyama went from 21 paint touches to fewer than 10, and the Spurs interior offence collapsed.
"Number one, major move. Mark Daigneault, the Thunder coach, goes to Isaiah Hartenstein as a primary defender," Windhorst said. "Shump and I were going back and forth about this for two days. I said the wings were hanging in there. Shump said put the big man on it. Hartenstein defended him on 47 plays last night. When Wembanyama goes from 21 shots in the paint in game one down to less than 10 in game two, their interior scoring completely changes."
Shumpert then took over the breakdown, leaning into a technical detail that fans rarely see on the broadcast: Hartenstein was not trying to block shots, he was trying to stop Wembanyama from getting into a rhythm with his hips and knees.
"All Hartenstein did got into his legs, made him play the game, made him have to fight for position," Shumpert said. "While fighting for position, guys were able to get in driving lanes. Wemby was roaming free [in Game 1]. If he doesn't have to actually guard anybody, he can guard everybody. So all Hartenstein did was got into his legs, made him play the game, made him have to fight for position."
The wider impact, Shumpert argued, was that the entire Thunder defensive plan tilted around making Wembanyama a participant rather than a roamer - and that allowed Oklahoma City's perimeter chaos to feed on Spurs ball-handlers.
It also fed back into Shai Gilgeous-Alexander's own offence. The MVP had been averaging under 30 points across the previous handful of games while being doubled relentlessly. Windhorst put the count at "53 double teams in two games." Shumpert said Hartenstein's physical example pulled the team's defensive identity in a new direction, and SGA followed.
"I think SGA and Hartenstein had a sit down," Shumpert said. "Because if you notice, SGA couldn't get to that mid-range. It was all about trying to get all the way to the rim or settling for a three-pointer. He got back to his mid-range because he now knows engage him. Hartenstein, people didn't know what he was doing half the time. He was waiting on them to get downhill. The moment they looked like they were about to get downhill, he got them bottled up. He made him do the little arm game. You got to play arm-bar with me. You got to figure it out."
Shumpert also pointed out the unspoken cost: Hartenstein was willing to spend his fouls.
"As bigs, you're like, I got six of them. I'm not taking any of them home. I'mma leave everything out on the floor. And that's what we wanted to see in game one. We wanted to see Wemby engaged."
The stat that anchored the segment came from Windhorst: in the 21 minutes Wembanyama sat in Game 2, the Thunder were plus-19 and shot 61 per cent from the floor. In the 85 minutes since the series began with him on the floor, they were minus-17 and shooting 40 per cent.
"Those numbers seem pretty stark to me," Windhorst said, "and when you played a lot of minutes in game one and that they may have found a little bit of a response to him in game two with Hartenstein."
Monica McNutt closed the panel by pointing out the human cost. With De'Aaron Fox out, Dylan Harper limping off late in Game 2 with a leg injury, and Stephon Castle alone carrying the lead-guard load, the tactical breakthrough only matters if San Antonio can keep enough healthy guards on the floor in Game 3 to make Wembanyama a kill-zone target again.
"I'm not a basketball expert, you are," Windhorst told McNutt with a smile, before underlining the wider point. "If Harper is hurt and De'Aaron Fox can't come back, that is an enormous advantage."
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*Originally published on [NBA News Global](https://nbanews.global/article/iman-shumpert-hartenstein-wembanyama-legs-tactical-breakdown-get-up-game-2-wcf-may-2026). Visit for full coverage.*
