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Iman Shumpert explains how OKC's relentless defense "desensitizes the ref's eyes"
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- Iman Shumpert explains how OKC's relentless defense "desensitizes the ref's eyes"
There's an old and often-used adage in the NBA that says "defense wins championships." And although in the last few years — or even decades — it seems offense is the more important weapon en route to that elusive Larry O'Brien trophy, there's no doubt defense still plays a big part in winning.
Just ask the reigning champions, the Oklahoma City Thunder , whose defense was one of the main talking points last year.
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Often talked about (but not always in a good way), the Thunder's defense is aggressive and relentless, sometimes to the point where opposing players and coaches have doubts that some of the things they do defensively are legal. But according to one of the great defenders of his time, Iman Shumpert , that's exactly what you need to do if you want the referees to allow physical and aggressive defense.
Desensitizing ref's eyes
Shumpert was part of the 2016 Cleveland Cavaliers championship team, playing a crucial defensive role. He says the secret to playing physical defense without getting whistles for the slightest touches is that all five players must constantly be aggressive, rather than just the on-ball defender being energetic.
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"This is the thing people don't realize about the whistle. It's one thing for you to get the whistle within the beginning of a shot clock, a possession where you're applying no pressure, and then all of a sudden you turn up the intensity and it's the first time the ref's seen it," Shumpert explained .
"It's a whole another ball game when all five of y'all are in people's face, and y'all are guarding with a certain level of intensity that desensitizes the ref's eyes," he added.
That's the case with the Thunder's defense both last year and this season.
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"Right now, the OKC's taking full advantage," Shumpert said while breaking down one defensive action against the Phoenix Suns .
It started with Jalen Williams applying pressure at the half, then forcing his player to drive to the basket and kick the ball out. After that, Lu Dort and Shai Gilgeous-Alexander continued with the pressure and eventually forced Devin Booker to take an off-balance half-court shot before the shot clock ran down.
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Refs adjusting their whistle
Shumpert discussed the times he played similar defense for the New York Knicks and got away with some situations that could have been called.
"What I realized a lot of times as I was playing defense, if I didn't have J.R. acting crazy and Tyson Chandler acting super intense, I'm not allowed to do all that sh*t that I'm doing. A lot oftimes people are like 'Yo, Iman, you was fouling!' Maybe I was, but we were all intense. So it just looked like y'all are soft at the moment," he said.
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"Once that becomes a thing that ref has to realize: 'Hey, I got to deal with this all game?!' Especially if it's from the jump, the ref now has to adjust his whistle. So, adjusting the whistle is never one guy, but five," Shumpert concluded.
This is the exact tactic the Thunder are employing defensively, and it appears to be working well so far. There's criticism that the league isn't as physical as it was in the '80s or '90s, but when teams and players play aggressively, there's always the other side that claims they're not being called for fouls or that they're being dirty.
Playing physical defense is still the best way to win, even in today's NBA.
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This story was originally published by Basketball Network on Jan 18, 2026, where it first appeared in the Latest News section. Add Basketball Network as a Preferred Source by clicking here.
