Stephon Castle has unreal poster dunk on Isaiah Hartenstein in Game 2

Alonzo Adams-Imagn Images

Stephon Castle has unreal poster dunk on Isaiah Hartenstein in Game 2

Originally posted on Larry Brown Sports
By Darryn Albert | Last updated May 21, 2026 12:01 AM ET

Stephon Castle lowered the boom (and then some) during Wednesday’s Game 2.

The San Antonio Spurs guard Castle produced the dunk of the NBA playoffs on Wednesday against the Oklahoma City Thunder . In the second quarter at Paycom Center in Oklahoma City, Okla., Castle charged into the paint off a kick-out by his Spurs teammate Victor Wembanyama … and proceeded to commit an aggravated assault on a rotating Isaiah Hartenstein.

The 7-footer Hartenstein proved to be little more than a court decoration to Castle, who cocked the ball back with one hand and then threw down a violent dunk over Hartenstein’s head.

Here is the crazy video.

STEPHON CASTLE POSTER ON HARTENSTEIN

(via @NBA)pic.twitter.com/MKIyuED9xV
— SportsCenter (@SportsCenter) May 21, 2026

Check out another angle of the dunk.

THIS ANGLE OF CASTLE’S POSTER. UNREAL. pic.twitter.com/KFhCD3EwWv
— Legion Hoops (@LegionHoops) May 21, 2026

Castle is already a tall guard at 6-foot-6, and he plays even bigger than that with his cartoon-like bounce. The 2025 NBA Rookie of the Year Castle participated in the Slam Dunk Contest last year and has also wreaked other kinds of havoc with his rim-wrecking ability in the past.

But Castle produced his very best work yet with that cruel attempt on the life on Hartenstein in Game 2.

This article first appeared on Larry Brown Sports and was syndicated with permission.

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