Firstly, if we’re all about drawing lines on tv pictures, how about drawing them so the red line isn’t closer to the goal-line than the blue because to me, this proves the Coventry player’s big toe was onside.
Secondly, ought the time of impact, foot to ball, should be the measure, not the point the ball left the foot. I reckon 10 or so frames could be taken whilst the ball and foot are on contact.