Originally Posted by
the other bob wilson
Been doing some research and FIFA's Laws of the Game 2014/15 states the following-
"A player in an offside position receiving the ball from an opponent, who deliberately plays the ball (except from a deliberate save), is not considered to have gained an advantage."
So, assuming there has not been a further change since then, it seems to me that the linesman deemed the contact with the ball by the Newcastle player to be accidental and so Zohore was offside - I've only seen the incident the once and am unlikely to see it again, so I can't really comment either way on whether he was right in his interpretation of what happened.