An explanation in the Mail of how that decision come about and the huge problem with it, now they've had time to look into it. Basically the final point of contact from Silva to Sterling was lost. They had a frame when Silva was playing the ball with Sterling over 10cm's onside and they used the frame where the ball had already gone where he was 2.5cm offside. Losing the point where it was actually played. In the 0.02 seconds between frames Sterling had moved around 13cm's. So they're not even using sufficient enough equipment to make these calls.