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Usama Mir, the leg-spinner for pakistan, delivered a flatter delivery. Without assessing the ball's direction, Van der Dussen retreated and took a smack on the pads. Although it seemed to the unaided eye that the ball could have missed the stumps, umpire Reiffel declared it out. Van der Dussen chose to employ the DRS (Decision review System), as was to be expected. That is the origin of all the misunderstandings.
The ball-tracking system first indicated that the ball would have missed the leg stump, but it was removed from the air and replaced with another tracker a short while later. The ball was clipping the stump this time. Both times, the monitoring indicated that the ball was pitching in line, the impact was ruled a "umpire's call," but the ball's ultimate trajectory followed distinct trajectories. Two distinct ball trackings are rarely seen on DRS replays. The belief was that the second one was the last. The triple 'umpire's call' decision on DRS was unjustifiable as van der Dussen was declared out on the pitch.
It goes without saying that van der Dussen was devastated. He stormed back, furious at 21. With south africa leading by 21 runs in their chase, it was a crucial point in the match. pakistan was able to regain control of the game when Van der Dussen was removed from the field, and they succeeded in doing so by taking another significant wicket from Heinrich Klaasen (12).