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			The rule says he can't block until "the kick ends".  The kick ends when the ball is in player possession.  The ball is dead in any case where a R player signals FC and any R player gains possession of the ball, and also in any case where K gains possession of the ball on R's side of the NZ.  So the only answer can be a kick that does not cross (or ends up) on K's side of the NZ.
		 
		
		
		
		
		
		
			
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				"Many baseball fans look upon an umpire as a sort of necessary evil to the luxury of baseball, like the odor that follows an automobile." - Hall of Fame Pitcher Christy Mathewson
			 
		
		
		
		
		
	
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