At the point of the obstruction I'm talking about, he definitely isn't chasing the ball. Their player is running, Haji is turning. I agree with David O'Day that he "moves across the defender", but the point is you can't do that when the ball has gone past you. The obstruction isn't deliberate, and nor is the consequent tangling of legs as their player is knocked backwards.
Would have been nice to get a pen at that stage of the game though, and on another day a ref might give it because it all happens in a split second.
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