You'd have thought Liverpool's opponents would have learned by now.
Mere moments before the Reds' Champions League semi-final first leg at Anfield, a murmur spread across the stadium. Villarreal, keen for any advantage, were employing an age old trick on Liverpool.
Alisson Becker slowly trotted away from the Kop, as opposite number Geronimo Rulli headed towards him. It soon became apparent Villarreal had won the toss.