It was the decisive moment of the Wales-Scotland match and it all hinged on a crucial conversation between referee Nic Berry and his TMO Brett Cronan.
With 67 minutes on the clock at the Principality Stadium, the sides were tied at 17-17 in what was a real cliff-hanger of a contest.
After Welsh skipper Dan Biggar had struck the woodwork with a long range penalty attempt, the home side regathered the ball, with Alex Cuthbert going for the try in the corner.